249224136 has 64 divisors (see below), whose sum is σ = 743040000. Its totient is φ = 68109888.

The previous prime is 249224089. The next prime is 249224147. The reversal of 249224136 is 631422942.

It is a super-2 number, since 2×249224136² = 124225339929892992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 249224097 and 249224106.

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, 28386 + ... + 36113.

It is an arithmetic number, because the mean of its divisors is an integer number (11610000).

Almost surely, 2^249224136 is an apocalyptic number.

It is an amenable number.

249224136 is an abundant number, since it is smaller than the sum of its proper divisors (493815864).

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

249224136 is a wasteful number, since it uses less digits than its factorization.

249224136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64538 (or 64534 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 249224136 is about 15786.8342614978. The cubic root of 249224136 is about 629.3081647005.

The spelling of 249224136 in words is "two hundred forty-nine million, two hundred twenty-four thousand, one hundred thirty-six".