402322224 has 40 divisors (see below), whose sum is σ = 1041320752. Its totient is φ = 133850880.

The previous prime is 402322171. The next prime is 402322229. The reversal of 402322224 is 422223204.

It is a self number, because there is not a number n which added to its sum of digits gives 402322224.

It is not an unprimeable number, because it can be changed into a prime (402322229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18222 + ... + 33714.

Almost surely, 2^402322224 is an apocalyptic number.

It is an amenable number.

402322224 is an abundant number, since it is smaller than the sum of its proper divisors (638998528).

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

402322224 is a wasteful number, since it uses less digits than its factorization.

402322224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16045 (or 16039 counting only the distinct ones).

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

The square root of 402322224 is about 20057.9715823909. The cubic root of 402322224 is about 738.2294070197.

Adding to 402322224 its reverse (422223204), we get a palindrome (824545428).

The spelling of 402322224 in words is "four hundred two million, three hundred twenty-two thousand, two hundred twenty-four".