422332431402 has 64 divisors (see below), whose sum is σ = 992181139200. Its totient is φ = 117354631680.

The previous prime is 422332431379. The next prime is 422332431419. The reversal of 422332431402 is 204134233224.

It is a super-2 number, since 2×422332431402² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422332431402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698077 + ... + 1154112.

It is an arithmetic number, because the mean of its divisors is an integer number (15502830300).

Almost surely, 2^422332431402 is an apocalyptic number.

422332431402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

422332431402 is an abundant number, since it is smaller than the sum of its proper divisors (569848707798).

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

422332431402 is a wasteful number, since it uses less digits than its factorization.

422332431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852351.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 422332431402 its reverse (204134233224), we get a palindrome (626466664626).

The spelling of 422332431402 in words is "four hundred twenty-two billion, three hundred thirty-two million, four hundred thirty-one thousand, four hundred two".