257413634 has 16 divisors (see below), whose sum is σ = 407138400. Its totient is φ = 121724064.

The previous prime is 257413613. The next prime is 257413649. The reversal of 257413634 is 436314752.

257413634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 257413594 and 257413603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17957 + ... + 28935.

It is an arithmetic number, because the mean of its divisors is an integer number (25446150).

Almost surely, 2^257413634 is an apocalyptic number.

257413634 is a deficient number, since it is larger than the sum of its proper divisors (149724766).

257413634 is a wasteful number, since it uses less digits than its factorization.

257413634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617.

The product of its digits is 60480, while the sum is 35.

The square root of 257413634 is about 16044.1152451608. The cubic root of 257413634 is about 636.1270282114.

The spelling of 257413634 in words is "two hundred fifty-seven million, four hundred thirteen thousand, six hundred thirty-four".