249464931 has 16 divisors (see below), whose sum is σ = 344736000. Its totient is φ = 160273568.

The previous prime is 249464911. The next prime is 249464981. The reversal of 249464931 is 139464942.

It is a cyclic number.

It is not a de Polignac number, because 249464931 - 2⁵ = 249464899 is a prime.

It is a super-2 number, since 2×249464931² = 124465503597669522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249464911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49720 + ... + 54506.

It is an arithmetic number, because the mean of its divisors is an integer number (21546000).

Almost surely, 2^249464931 is an apocalyptic number.

249464931 is a deficient number, since it is larger than the sum of its proper divisors (95271069).

249464931 is a wasteful number, since it uses less digits than its factorization.

249464931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418.

The product of its digits is 186624, while the sum is 42.

The square root of 249464931 is about 15794.4588701228. The cubic root of 249464931 is about 629.5107741335.

The spelling of 249464931 in words is "two hundred forty-nine million, four hundred sixty-four thousand, nine hundred thirty-one".