249490536 has 64 divisors (see below), whose sum is σ = 633547200. Its totient is φ = 81865728.

The previous prime is 249490481. The next prime is 249490541. The reversal of 249490536 is 635094942.

It is a super-3 number, since 3×249490536³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740160 + ... + 740496.

It is an arithmetic number, because the mean of its divisors is an integer number (9899175).

Almost surely, 2^249490536 is an apocalyptic number.

It is an amenable number.

249490536 is an abundant number, since it is smaller than the sum of its proper divisors (384056664).

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

249490536 is a wasteful number, since it uses less digits than its factorization.

249490536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 249490536 is about 15795.2694184050. The cubic root of 249490536 is about 629.5323109909.

The spelling of 249490536 in words is "two hundred forty-nine million, four hundred ninety thousand, five hundred thirty-six".