249180664 has 16 divisors (see below), whose sum is σ = 468720720. Its totient is φ = 124188480.

The previous prime is 249180647. The next prime is 249180671. The reversal of 249180664 is 466081942.

It is a super-2 number, since 2×249180664² = 124182006622961792, 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 3 ways as a sum of consecutive naturals, for example, 47589 + ... + 52564.

It is an arithmetic number, because the mean of its divisors is an integer number (29295045).

Almost surely, 2^249180664 is an apocalyptic number.

It is an amenable number.

249180664 is a deficient number, since it is larger than the sum of its proper divisors (219540056).

249180664 is a wasteful number, since it uses less digits than its factorization.

249180664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100470 (or 100466 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 249180664 is about 15785.4573579608. The cubic root of 249180664 is about 629.2715726383.

The spelling of 249180664 in words is "two hundred forty-nine million, one hundred eighty thousand, six hundred sixty-four".