255546940 has 48 divisors (see below), whose sum is σ = 589970304. Its totient is φ = 92206400.

The previous prime is 255546931. The next prime is 255546959. The reversal of 255546940 is 49645552.

It is a junction number, because it is equal to n+sod(n) for n = 255546893 and 255546902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24387 + ... + 33253.

It is an arithmetic number, because the mean of its divisors is an integer number (12291048).

Almost surely, 2^255546940 is an apocalyptic number.

255546940 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 255546940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294985152).

255546940 is an abundant number, since it is smaller than the sum of its proper divisors (334423364).

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

255546940 is a wasteful number, since it uses less digits than its factorization.

255546940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018 (or 9016 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 255546940 is about 15985.8356053101. The cubic root of 255546940 is about 634.5856225566.

The spelling of 255546940 in words is "two hundred fifty-five million, five hundred forty-six thousand, nine hundred forty".