249224430 has 64 divisors (see below), whose sum is σ = 736178688. Its totient is φ = 52583040.

The previous prime is 249224429. The next prime is 249224447. The reversal of 249224430 is 34422942.

It is a super-2 number, since 2×249224430² = 124225633017649800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42916 + ... + 48375.

It is an arithmetic number, because the mean of its divisors is an integer number (11502792).

Almost surely, 2^249224430 is an apocalyptic number.

249224430 is an abundant number, since it is smaller than the sum of its proper divisors (486954258).

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

249224430 is a wasteful number, since it uses less digits than its factorization.

249224430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91321.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 249224430 is about 15786.8435730516. The cubic root of 249224430 is about 629.3084121572.

The spelling of 249224430 in words is "two hundred forty-nine million, two hundred twenty-four thousand, four hundred thirty".