426681328 has 20 divisors (see below), whose sum is σ = 870205960. Its totient is φ = 202112064.

The previous prime is 426681293. The next prime is 426681329. The reversal of 426681328 is 823186624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426681329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701475 + ... + 702082.

It is an arithmetic number, because the mean of its divisors is an integer number (43510298).

Almost surely, 2^426681328 is an apocalyptic number.

It is an amenable number.

426681328 is an abundant number, since it is smaller than the sum of its proper divisors (443524632).

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

426681328 is a wasteful number, since it uses less digits than its factorization.

426681328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403584 (or 1403578 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 426681328 is about 20656.2660710981. The cubic root of 426681328 is about 752.8374460329.

The spelling of 426681328 in words is "four hundred twenty-six million, six hundred eighty-one thousand, three hundred twenty-eight".