426658672 has 80 divisors (see below), whose sum is σ = 940118400. Its totient is φ = 185803520.

The previous prime is 426658663. The next prime is 426658691. The reversal of 426658672 is 276856624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 913383 + ... + 913849.

It is an arithmetic number, because the mean of its divisors is an integer number (11751480).

Almost surely, 2^426658672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426658672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470059200).

426658672 is an abundant number, since it is smaller than the sum of its proper divisors (513459728).

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

426658672 is a wasteful number, since it uses less digits than its factorization.

426658672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 688 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 426658672 is about 20655.7176587985. The cubic root of 426658672 is about 752.8241210321.

The spelling of 426658672 in words is "four hundred twenty-six million, six hundred fifty-eight thousand, six hundred seventy-two".