249213712 has 40 divisors (see below), whose sum is σ = 543750912. Its totient is φ = 109622400.

The previous prime is 249213691. The next prime is 249213721. The reversal of 249213712 is 217312942.

249213712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 17383 + ... + 28294.

Almost surely, 2^249213712 is an apocalyptic number.

249213712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

249213712 is an abundant number, since it is smaller than the sum of its proper divisors (294537200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249213712 is a wasteful number, since it uses less digits than its factorization.

249213712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45727 (or 45721 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 249213712 is about 15786.5041095234. The cubic root of 249213712 is about 629.2993908048.

The spelling of 249213712 in words is "two hundred forty-nine million, two hundred thirteen thousand, seven hundred twelve".