426520664 has 32 divisors (see below), whose sum is σ = 843340800. Its totient is φ = 201670560.

The previous prime is 426520583. The next prime is 426520691. The reversal of 426520664 is 466025624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93689 + ... + 98135.

It is an arithmetic number, because the mean of its divisors is an integer number (26354400).

Almost surely, 2^426520664 is an apocalyptic number.

It is an amenable number.

426520664 is a deficient number, since it is larger than the sum of its proper divisors (416820136).

426520664 is a wasteful number, since it uses less digits than its factorization.

426520664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103 (or 5099 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 426520664 is about 20652.3767155260. The cubic root of 426520664 is about 752.7429422021.

The spelling of 426520664 in words is "four hundred twenty-six million, five hundred twenty thousand, six hundred sixty-four".