426642672 has 20 divisors (see below), whose sum is σ = 1102160360. Its totient is φ = 142214208.

The previous prime is 426642661. The next prime is 426642683. The reversal of 426642672 is 276246624.

It is an interprime number because it is at equal distance from previous prime (426642661) and next prime (426642683).

It is a self number, because there is not a number n which added to its sum of digits gives 426642672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4444147 + ... + 4444242.

It is an arithmetic number, because the mean of its divisors is an integer number (55108018).

Almost surely, 2^426642672 is an apocalyptic number.

It is an amenable number.

426642672 is an abundant number, since it is smaller than the sum of its proper divisors (675517688).

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

426642672 is a wasteful number, since it uses less digits than its factorization.

426642672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888400 (or 8888394 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 426642672 is about 20655.3303532042. The cubic root of 426642672 is about 752.8147104366.

The spelling of 426642672 in words is "four hundred twenty-six million, six hundred forty-two thousand, six hundred seventy-two".