402838222 has 32 divisors (see below), whose sum is σ = 661893120. Its totient is φ = 183131520.

The previous prime is 402838207. The next prime is 402838223. The reversal of 402838222 is 222838204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402838223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124647 + ... + 127837.

It is an arithmetic number, because the mean of its divisors is an integer number (20684160).

Almost surely, 2^402838222 is an apocalyptic number.

402838222 is a deficient number, since it is larger than the sum of its proper divisors (259054898).

402838222 is a wasteful number, since it uses less digits than its factorization.

402838222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 402838222 is about 20070.8301273266. The cubic root of 402838222 is about 738.5448773394.

The spelling of 402838222 in words is "four hundred two million, eight hundred thirty-eight thousand, two hundred twenty-two".