257412998 has 16 divisors (see below), whose sum is σ = 390044160. Its totient is φ = 127403136.

The previous prime is 257412979. The next prime is 257413021. The reversal of 257412998 is 899214752.

It is a super-2 number, since 2×257412998² = 132522903078696008, which contains 22 as substring.

It is a congruent number.

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, 149768 + ... + 151476.

It is an arithmetic number, because the mean of its divisors is an integer number (24377760).

Almost surely, 2^257412998 is an apocalyptic number.

257412998 is a deficient number, since it is larger than the sum of its proper divisors (132631162).

257412998 is a wasteful number, since it uses less digits than its factorization.

257412998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431.

The product of its digits is 362880, while the sum is 47.

The square root of 257412998 is about 16044.0954247972. The cubic root of 257412998 is about 636.1265043112.

The spelling of 257412998 in words is "two hundred fifty-seven million, four hundred twelve thousand, nine hundred ninety-eight".