257430612 has 24 divisors (see below), whose sum is σ = 600966016. Its totient is φ = 85768128.

The previous prime is 257430599. The next prime is 257430617. The reversal of 257430612 is 216034752.

It is a self number, because there is not a number n which added to its sum of digits gives 257430612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257430617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29328 + ... + 37080.

Almost surely, 2^257430612 is an apocalyptic number.

It is an amenable number.

257430612 is an abundant number, since it is smaller than the sum of its proper divisors (343535404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257430612 is a wasteful number, since it uses less digits than its factorization.

257430612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10527 (or 10525 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 257430612 is about 16044.6443400906. The cubic root of 257430612 is about 636.1410133904.

The spelling of 257430612 in words is "two hundred fifty-seven million, four hundred thirty thousand, six hundred twelve".