249159644 has 12 divisors (see below), whose sum is σ = 454987344. Its totient is φ = 119163264.

The previous prime is 249159611. The next prime is 249159697. The reversal of 249159644 is 446951942.

It is a junction number, because it is equal to n+sod(n) for n = 249159595 and 249159604.

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, 1354037 + ... + 1354220.

It is an arithmetic number, because the mean of its divisors is an integer number (37915612).

Almost surely, 2^249159644 is an apocalyptic number.

It is an amenable number.

249159644 is a deficient number, since it is larger than the sum of its proper divisors (205827700).

249159644 is a wasteful number, since it uses less digits than its factorization.

249159644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708284 (or 2708282 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 249159644 is about 15784.7915412273. The cubic root of 249159644 is about 629.2538777655.

The spelling of 249159644 in words is "two hundred forty-nine million, one hundred fifty-nine thousand, six hundred forty-four".