421995792 has 20 divisors (see below), whose sum is σ = 1090155920. Its totient is φ = 140665248.

The previous prime is 421995779. The next prime is 421995797. The reversal of 421995792 is 297599124.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 8791579 = 421995792 / (4 + 2 + 1 + 9 + 9 + 5 + 7 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (421995797) 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 3 ways as a sum of consecutive naturals, for example, 4395742 + ... + 4395837.

It is an arithmetic number, because the mean of its divisors is an integer number (54507796).

Almost surely, 2^421995792 is an apocalyptic number.

It is an amenable number.

421995792 is an abundant number, since it is smaller than the sum of its proper divisors (668160128).

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

421995792 is a wasteful number, since it uses less digits than its factorization.

421995792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791590 (or 8791584 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 421995792 is about 20542.5361628013. The cubic root of 421995792 is about 750.0715736139.

The spelling of 421995792 in words is "four hundred twenty-one million, nine hundred ninety-five thousand, seven hundred ninety-two".