422716690 has 32 divisors (see below), whose sum is σ = 834318144. Its totient is φ = 152927040.

The previous prime is 422716687. The next prime is 422716699. The reversal of 422716690 is 96617224.

It is a super-2 number, since 2×422716690² = 357378800009112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422716699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11917 + ... + 31423.

It is an arithmetic number, because the mean of its divisors is an integer number (26072442).

Almost surely, 2^422716690 is an apocalyptic number.

422716690 is a deficient number, since it is larger than the sum of its proper divisors (411601454).

422716690 is a wasteful number, since it uses less digits than its factorization.

422716690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19722.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 422716690 is about 20560.0751457771. The cubic root of 422716690 is about 750.4984479188.

The spelling of 422716690 in words is "four hundred twenty-two million, seven hundred sixteen thousand, six hundred ninety".