402204402 has 24 divisors (see below), whose sum is σ = 875581200. Its totient is φ = 133431480.

The previous prime is 402204373. The next prime is 402204419. The reversal of 402204402 is 204402204.

402204402 is a `hidden beast` number, since 4 + 0 + 220 + 440 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49152 + ... + 56747.

It is an arithmetic number, because the mean of its divisors is an integer number (36482550).

Almost surely, 2^402204402 is an apocalyptic number.

402204402 is an abundant number, since it is smaller than the sum of its proper divisors (473376798).

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

402204402 is a wasteful number, since it uses less digits than its factorization.

402204402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106118 (or 106115 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 402204402 is about 20055.0343305615. The cubic root of 402204402 is about 738.1573353052.

Adding to 402204402 its reverse (204402204), we get a palindrome (606606606).

The spelling of 402204402 in words is "four hundred two million, two hundred four thousand, four hundred two".