402232224 has 48 divisors (see below), whose sum is σ = 1058672160. Its totient is φ = 133720320.

The previous prime is 402232219. The next prime is 402232247. The reversal of 402232224 is 422232204.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 402232224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31959 + ... + 42729.

It is an arithmetic number, because the mean of its divisors is an integer number (22055670).

Almost surely, 2^402232224 is an apocalyptic number.

It is an amenable number.

402232224 is an abundant number, since it is smaller than the sum of its proper divisors (656439936).

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

402232224 is a wasteful number, since it uses less digits than its factorization.

402232224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173 (or 11165 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 402232224 is about 20055.7279598622. The cubic root of 402232224 is about 738.1743552912.

Adding to 402232224 its reverse (422232204), we get a palindrome (824464428).

The spelling of 402232224 in words is "four hundred two million, two hundred thirty-two thousand, two hundred twenty-four".