257199012 has 36 divisors (see below), whose sum is σ = 743020096. Its totient is φ = 73485360.

The previous prime is 257198987. The next prime is 257199013. The reversal of 257199012 is 210991752.

257199012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×257199012² = 132302663547552288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (257199013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510064 + ... + 510567.

Almost surely, 2^257199012 is an apocalyptic number.

It is an amenable number.

257199012 is an abundant number, since it is smaller than the sum of its proper divisors (485821084).

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

257199012 is a wasteful number, since it uses less digits than its factorization.

257199012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020648 (or 1020643 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 257199012 is about 16037.4253544639. The cubic root of 257199012 is about 635.9501859644.

257199012 divided by its sum of digits (36) gives a palindrome (7144417).

The spelling of 257199012 in words is "two hundred fifty-seven million, one hundred ninety-nine thousand, twelve".