255841140 has 96 divisors (see below), whose sum is σ = 743694336. Its totient is φ = 65646720.

The previous prime is 255841139. The next prime is 255841141. The reversal of 255841140 is 41148552.

255841140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255841139) and next prime (255841141).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 255841098 and 255841107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255841141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488919 + ... + 489441.

It is an arithmetic number, because the mean of its divisors is an integer number (7746816).

Almost surely, 2^255841140 is an apocalyptic number.

255841140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255841140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371847168).

255841140 is an abundant number, since it is smaller than the sum of its proper divisors (487853196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255841140 is a wasteful number, since it uses less digits than its factorization.

255841140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 255841140 is about 15995.0348546041. The cubic root of 255841140 is about 634.8290527086.

Adding to 255841140 its reverse (41148552), we get a palindrome (296989692).

The spelling of 255841140 in words is "two hundred fifty-five million, eight hundred forty-one thousand, one hundred forty".