275369440 has 48 divisors (see below), whose sum is σ = 652618512. Its totient is φ = 109799424.

The previous prime is 275369411. The next prime is 275369441. The reversal of 275369440 is 44963572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 275369393 and 275369402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275369441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51367 + ... + 56473.

It is an arithmetic number, because the mean of its divisors is an integer number (13596219).

Almost surely, 2^275369440 is an apocalyptic number.

275369440 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 275369440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326309256).

275369440 is an abundant number, since it is smaller than the sum of its proper divisors (377249072).

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

275369440 is a wasteful number, since it uses less digits than its factorization.

275369440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 275369440 is about 16594.2592483063. The cubic root of 275369440 is about 650.5867994851.

The spelling of 275369440 in words is "two hundred seventy-five million, three hundred sixty-nine thousand, four hundred forty".