249374988 has 18 divisors (see below), whose sum is σ = 630364644. Its totient is φ = 83124984.

The previous prime is 249374987. The next prime is 249375029. The reversal of 249374988 is 889473942.

249374988 is a `hidden beast` number, since 2 + 493 + 74 + 9 + 88 = 666.

249374988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (249374987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3463506 + ... + 3463577.

It is an arithmetic number, because the mean of its divisors is an integer number (35020258).

Almost surely, 2^249374988 is an apocalyptic number.

It is an amenable number.

249374988 is an abundant number, since it is smaller than the sum of its proper divisors (380989656).

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

249374988 is a wasteful number, since it uses less digits than its factorization.

249374988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6927093 (or 6927088 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 249374988 is about 15791.6113174052. The cubic root of 249374988 is about 629.4351096659.

The spelling of 249374988 in words is "two hundred forty-nine million, three hundred seventy-four thousand, nine hundred eighty-eight".