422375690 has 64 divisors (see below), whose sum is σ = 851005440. Its totient is φ = 149640000.

The previous prime is 422375689. The next prime is 422375717. The reversal of 422375690 is 96573224.

It is a super-2 number, since 2×422375690² = 356802447005952200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 979775 + ... + 980205.

It is an arithmetic number, because the mean of its divisors is an integer number (13296960).

Almost surely, 2^422375690 is an apocalyptic number.

422375690 is an abundant number, since it is smaller than the sum of its proper divisors (428629750).

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

422375690 is a wasteful number, since it uses less digits than its factorization.

422375690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 422375690 is about 20551.7807014380. The cubic root of 422375690 is about 750.2965878839.

It can be divided in two parts, 42 and 2375690, that added together give a palindrome (2375732).

The spelling of 422375690 in words is "four hundred twenty-two million, three hundred seventy-five thousand, six hundred ninety".