402222044 has 24 divisors (see below), whose sum is σ = 817635168. Its totient is φ = 169554240.

The previous prime is 402222019. The next prime is 402222049. The reversal of 402222044 is 440222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402222049) 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, 116039 + ... + 119454.

It is an arithmetic number, because the mean of its divisors is an integer number (34068132).

Almost surely, 2^402222044 is an apocalyptic number.

It is an amenable number.

402222044 is an abundant number, since it is smaller than the sum of its proper divisors (415413124).

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

402222044 is a wasteful number, since it uses less digits than its factorization.

402222044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235565 (or 235563 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 402222044 is about 20055.4741654243. The cubic root of 402222044 is about 738.1681278120.

Adding to 402222044 its reverse (440222204), we get a palindrome (842444248).

The spelling of 402222044 in words is "four hundred two million, two hundred twenty-two thousand, forty-four".