249517004 has 72 divisors (see below), whose sum is σ = 499522464. Its totient is φ = 108908800.

The previous prime is 249516989. The next prime is 249517049. The reversal of 249517004 is 400715942.

It is a happy number.

It is a super-3 number, since 3×249517004³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1821224 + ... + 1821360.

It is an arithmetic number, because the mean of its divisors is an integer number (6937812).

Almost surely, 2^249517004 is an apocalyptic number.

It is an amenable number.

249517004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

249517004 is a wasteful number, since it uses less digits than its factorization.

249517004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 249517004 is about 15796.1072419758. The cubic root of 249517004 is about 629.5545721854.

The spelling of 249517004 in words is "two hundred forty-nine million, five hundred seventeen thousand, four".