426291816 has 32 divisors (see below), whose sum is σ = 1073872800. Its totient is φ = 141011520.

The previous prime is 426291797. The next prime is 426291823. The reversal of 426291816 is 618192624.

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, 64651 + ... + 70938.

It is an arithmetic number, because the mean of its divisors is an integer number (33558525).

Almost surely, 2^426291816 is an apocalyptic number.

It is an amenable number.

426291816 is an abundant number, since it is smaller than the sum of its proper divisors (647580984).

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

426291816 is a wasteful number, since it uses less digits than its factorization.

426291816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135729 (or 135725 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 426291816 is about 20646.8354960270. The cubic root of 426291816 is about 752.6082910197.

The spelling of 426291816 in words is "four hundred twenty-six million, two hundred ninety-one thousand, eight hundred sixteen".