257078452 has 12 divisors (see below), whose sum is σ = 469447776. Its totient is φ = 122950520.

The previous prime is 257078449. The next prime is 257078477. The reversal of 257078452 is 254870752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397074 + ... + 1397257.

It is an arithmetic number, because the mean of its divisors is an integer number (39120648).

Almost surely, 2^257078452 is an apocalyptic number.

It is an amenable number.

257078452 is a deficient number, since it is larger than the sum of its proper divisors (212369324).

257078452 is a wasteful number, since it uses less digits than its factorization.

257078452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794358 (or 2794356 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 257078452 is about 16033.6662058308. Note that the first 3 decimals coincide. The cubic root of 257078452 is about 635.8508048970.

The spelling of 257078452 in words is "two hundred fifty-seven million, seventy-eight thousand, four hundred fifty-two".