257642096 has 20 divisors (see below), whose sum is σ = 499707600. Its totient is φ = 128685312.

The previous prime is 257642093. The next prime is 257642107. The reversal of 257642096 is 690246752.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257642093) 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, 8165 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (24985380).

Almost surely, 2^257642096 is an apocalyptic number.

It is an amenable number.

257642096 is a deficient number, since it is larger than the sum of its proper divisors (242065504).

257642096 is a wasteful number, since it uses less digits than its factorization.

257642096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16970 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 257642096 is about 16051.2334728519. The cubic root of 257642096 is about 636.3151662378.

The spelling of 257642096 in words is "two hundred fifty-seven million, six hundred forty-two thousand, ninety-six".