249604738 has 16 divisors (see below), whose sum is σ = 389168640. Its totient is φ = 119963376.

The previous prime is 249604699. The next prime is 249604753. The reversal of 249604738 is 837406942.

It is a junction number, because it is equal to n+sod(n) for n = 249604694 and 249604703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14178 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (24323040).

Almost surely, 2^249604738 is an apocalyptic number.

249604738 is a deficient number, since it is larger than the sum of its proper divisors (139563902).

249604738 is a wasteful number, since it uses less digits than its factorization.

249604738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40761.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 249604738 is about 15798.8840745161. The cubic root of 249604738 is about 629.6283505486.

The spelling of 249604738 in words is "two hundred forty-nine million, six hundred four thousand, seven hundred thirty-eight".