249728396 has 12 divisors (see below), whose sum is σ = 452094720. Its totient is φ = 120558480.

The previous prime is 249728389. The next prime is 249728431. The reversal of 249728396 is 693827942.

249728396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1076300 + ... + 1076531.

It is an arithmetic number, because the mean of its divisors is an integer number (37674560).

Almost surely, 2^249728396 is an apocalyptic number.

It is an amenable number.

249728396 is a deficient number, since it is larger than the sum of its proper divisors (202366324).

249728396 is a wasteful number, since it uses less digits than its factorization.

249728396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152864 (or 2152862 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 249728396 is about 15802.7970941856. The cubic root of 249728396 is about 629.7323092172.

The spelling of 249728396 in words is "two hundred forty-nine million, seven hundred twenty-eight thousand, three hundred ninety-six".