426615820 has 12 divisors (see below), whose sum is σ = 895893264. Its totient is φ = 170646320.

The previous prime is 426615817. The next prime is 426615821. The reversal of 426615820 is 28516624.

It is not an unprimeable number, because it can be changed into a prime (426615821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10665376 + ... + 10665415.

It is an arithmetic number, because the mean of its divisors is an integer number (74657772).

Almost surely, 2^426615820 is an apocalyptic number.

It is an amenable number.

426615820 is an abundant number, since it is smaller than the sum of its proper divisors (469277444).

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

426615820 is a wasteful number, since it uses less digits than its factorization.

426615820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21330800 (or 21330798 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 426615820 is about 20654.6803412689. The cubic root of 426615820 is about 752.7989165760.

The spelling of 426615820 in words is "four hundred twenty-six million, six hundred fifteen thousand, eight hundred twenty".