402344226 has 32 divisors (see below), whose sum is σ = 922944000. Its totient is φ = 129787920.

The previous prime is 402344191. The next prime is 402344233. The reversal of 402344226 is 622443204.

402344226 is a `hidden beast` number, since 4 + 0 + 234 + 422 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 402344226.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118501 + ... + 121848.

It is an arithmetic number, because the mean of its divisors is an integer number (28842000).

Almost surely, 2^402344226 is an apocalyptic number.

402344226 is an abundant number, since it is smaller than the sum of its proper divisors (520599774).

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

402344226 is a wasteful number, since it uses less digits than its factorization.

402344226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240391 (or 240385 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 402344226 is about 20058.5200351372. The cubic root of 402344226 is about 738.2428640833.

The spelling of 402344226 in words is "four hundred two million, three hundred forty-four thousand, two hundred twenty-six".