426187656 has 80 divisors (see below), whose sum is σ = 1197929040. Its totient is φ = 141562080.

The previous prime is 426187609. The next prime is 426187667. The reversal of 426187656 is 656781624.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 213495 + ... + 215481.

It is an arithmetic number, because the mean of its divisors is an integer number (14974113).

Almost surely, 2^426187656 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 426187656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (598964520).

426187656 is an abundant number, since it is smaller than the sum of its proper divisors (771741384).

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

426187656 is a wasteful number, since it uses less digits than its factorization.

426187656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336 (or 2323 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 426187656 is about 20644.3129214803. The cubic root of 426187656 is about 752.5469886737.

The spelling of 426187656 in words is "four hundred twenty-six million, one hundred eighty-seven thousand, six hundred fifty-six".