422791680 has 80 divisors (see below), whose sum is σ = 1351636704. Its totient is φ = 112742400.

The previous prime is 422791673. The next prime is 422791687. The reversal of 422791680 is 86197224.

It is an interprime number because it is at equal distance from previous prime (422791673) and next prime (422791687).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (422791687) 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, 19846 + ... + 35205.

Almost surely, 2^422791680 is an apocalyptic number.

422791680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422791680 is an abundant number, since it is smaller than the sum of its proper divisors (928845024).

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

422791680 is an equidigital number, since it uses as much as digits as its factorization.

422791680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55077 (or 55061 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 422791680 is about 20561.8987450089. The cubic root of 422791680 is about 750.5428248046.

The spelling of 422791680 in words is "four hundred twenty-two million, seven hundred ninety-one thousand, six hundred eighty".