426320780 has 24 divisors (see below), whose sum is σ = 895670160. Its totient is φ = 170452800.

The previous prime is 426320777. The next prime is 426320809. The reversal of 426320780 is 87023624.

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 7 ways as a sum of consecutive naturals, for example, 71930 + ... + 77630.

It is an arithmetic number, because the mean of its divisors is an integer number (37319590).

Almost surely, 2^426320780 is an apocalyptic number.

It is an amenable number.

426320780 is an abundant number, since it is smaller than the sum of its proper divisors (469349380).

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

426320780 is a wasteful number, since it uses less digits than its factorization.

426320780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449 (or 9447 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 426320780 is about 20647.5368991074. The cubic root of 426320780 is about 752.6253357232.

The spelling of 426320780 in words is "four hundred twenty-six million, three hundred twenty thousand, seven hundred eighty".