257938982 has 8 divisors (see below), whose sum is σ = 442181136. Its totient is φ = 110545272.

The previous prime is 257938979. The next prime is 257938991. The reversal of 257938982 is 289839752.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9212093 + ... + 9212120.

It is an arithmetic number, because the mean of its divisors is an integer number (55272642).

Almost surely, 2^257938982 is an apocalyptic number.

257938982 is a deficient number, since it is larger than the sum of its proper divisors (184242154).

257938982 is a wasteful number, since it uses less digits than its factorization.

257938982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18424222.

The product of its digits is 2177280, while the sum is 53.

The square root of 257938982 is about 16060.4788845165. The cubic root of 257938982 is about 636.5594851994.

The spelling of 257938982 in words is "two hundred fifty-seven million, nine hundred thirty-eight thousand, nine hundred eighty-two".