249007490 has 16 divisors (see below), whose sum is σ = 455562360. Its totient is φ = 97969920.

The previous prime is 249007489. The next prime is 249007513. The reversal of 249007490 is 94700942.

It can be written as a sum of positive squares in 4 ways, for example, as 96805921 + 152201569 = 9839^2 + 12337^2 .

It is a super-2 number, since 2×249007490² = 124009460152200200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249007490.

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, 203495 + ... + 204714.

Almost surely, 2^249007490 is an apocalyptic number.

249007490 is a deficient number, since it is larger than the sum of its proper divisors (206554870).

249007490 is a wasteful number, since it uses less digits than its factorization.

249007490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408277.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 249007490 is about 15779.9711660066. The cubic root of 249007490 is about 629.1257631308.

The spelling of 249007490 in words is "two hundred forty-nine million, seven thousand, four hundred ninety".