257228604038 has 32 divisors (see below), whose sum is σ = 443407011840. Its totient is φ = 109630261440.

The previous prime is 257228604019. The next prime is 257228604049. The reversal of 257228604038 is 830406822752.

It is a junction number, because it is equal to n+sod(n) for n = 257228603983 and 257228604001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10065545 + ... + 10091067.

It is an arithmetic number, because the mean of its divisors is an integer number (13856469120).

Almost surely, 2^257228604038 is an apocalyptic number.

257228604038 is a deficient number, since it is larger than the sum of its proper divisors (186178407802).

257228604038 is a wasteful number, since it uses less digits than its factorization.

257228604038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29492.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 257228604038 in words is "two hundred fifty-seven billion, two hundred twenty-eight million, six hundred four thousand, thirty-eight".