249943492 has 18 divisors (see below), whose sum is σ = 440441498. Its totient is φ = 124105728.

The previous prime is 249943481. The next prime is 249943513. The reversal of 249943492 is 294349942.

It can be written as a sum of positive squares in 3 ways, for example, as 3013696 + 246929796 = 1736^2 + 15714^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 438984 + ... + 439552.

Almost surely, 2^249943492 is an apocalyptic number.

It is an amenable number.

249943492 is a deficient number, since it is larger than the sum of its proper divisors (190498006).

249943492 is an equidigital number, since it uses as much as digits as its factorization.

249943492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 764 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 249943492 is about 15809.6012599939. The cubic root of 249943492 is about 629.9130576251.

The spelling of 249943492 in words is "two hundred forty-nine million, nine hundred forty-three thousand, four hundred ninety-two".