257038896 has 20 divisors (see below), whose sum is σ = 664017272. Its totient is φ = 85679616.

The previous prime is 257038891. The next prime is 257038909. The reversal of 257038896 is 698830752.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5354977 = 257038896 / (2 + 5 + 7 + 0 + 3 + 8 + 8 + 9 + 6).

It is not an unprimeable number, because it can be changed into a prime (257038891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677441 + ... + 2677536.

Almost surely, 2^257038896 is an apocalyptic number.

It is an amenable number.

257038896 is an abundant number, since it is smaller than the sum of its proper divisors (406978376).

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

257038896 is a wasteful number, since it uses less digits than its factorization.

257038896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354988 (or 5354982 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 257038896 is about 16032.4326288932. The cubic root of 257038896 is about 635.8181909817.

The spelling of 257038896 in words is "two hundred fifty-seven million, thirty-eight thousand, eight hundred ninety-six".