257402412 has 36 divisors (see below), whose sum is σ = 653518320. Its totient is φ = 85423392.

The previous prime is 257402399. The next prime is 257402413. The reversal of 257402412 is 214204752.

257402412 is a `hidden beast` number, since 257 + 402 + 4 + 1 + 2 = 666.

257402412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (257402413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7368 + ... + 23855.

Almost surely, 2^257402412 is an apocalyptic number.

It is an amenable number.

257402412 is an abundant number, since it is smaller than the sum of its proper divisors (396115908).

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

257402412 is a wasteful number, since it uses less digits than its factorization.

257402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31462 (or 31457 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 257402412 is about 16043.7655181070. The cubic root of 257402412 is about 636.1177840477.

The spelling of 257402412 in words is "two hundred fifty-seven million, four hundred two thousand, four hundred twelve".