249474244 has 6 divisors (see below), whose sum is σ = 436579934. Its totient is φ = 124737120.

The previous prime is 249474227. The next prime is 249474257. The reversal of 249474244 is 442474942.

It can be written as a sum of positive squares in only one way, i.e., 139476100 + 109998144 = 11810^2 + 10488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 249474197 and 249474206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31184277 + ... + 31184284.

Almost surely, 2^249474244 is an apocalyptic number.

It is an amenable number.

249474244 is a deficient number, since it is larger than the sum of its proper divisors (187105690).

249474244 is a wasteful number, since it uses less digits than its factorization.

249474244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62368565 (or 62368563 counting only the distinct ones).

The product of its digits is 258048, while the sum is 40.

The square root of 249474244 is about 15794.7536859553. The cubic root of 249474244 is about 629.5186076473.

The spelling of 249474244 in words is "two hundred forty-nine million, four hundred seventy-four thousand, two hundred forty-four".