249764912 has 40 divisors (see below), whose sum is σ = 510238176. Its totient is φ = 118204416.

The previous prime is 249764897. The next prime is 249764947. The reversal of 249764912 is 219467942.

It is a super-2 number, since 2×249764912² = 124765022532735488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32198 + ... + 39194.

Almost surely, 2^249764912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249764912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255119088).

249764912 is an abundant number, since it is smaller than the sum of its proper divisors (260473264).

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

249764912 is a wasteful number, since it uses less digits than its factorization.

249764912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125 (or 7119 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 249764912 is about 15803.9524170380. The cubic root of 249764912 is about 629.7630014741.

The spelling of 249764912 in words is "two hundred forty-nine million, seven hundred sixty-four thousand, nine hundred twelve".