249880768 has 14 divisors (see below), whose sum is σ = 495857276. Its totient is φ = 124940352.

The previous prime is 249880751. The next prime is 249880769. The reversal of 249880768 is 867088942.

It is not an unprimeable number, because it can be changed into a prime (249880769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952130 + ... + 1952257.

Almost surely, 2^249880768 is an apocalyptic number.

It is an amenable number.

249880768 is a deficient number, since it is larger than the sum of its proper divisors (245976508).

249880768 is an equidigital number, since it uses as much as digits as its factorization.

249880768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904399 (or 3904389 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 249880768 is about 15807.6174042770. The cubic root of 249880768 is about 629.8603604176.

The spelling of 249880768 in words is "two hundred forty-nine million, eight hundred eighty thousand, seven hundred sixty-eight".