426891328 has 56 divisors (see below), whose sum is σ = 883351040. Its totient is φ = 204456960.

The previous prime is 426891319. The next prime is 426891329. The reversal of 426891328 is 823198624.

It is a super-3 number, since 3×426891328³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (426891329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203308 + ... + 205396.

Almost surely, 2^426891328 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 426891328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441675520).

426891328 is an abundant number, since it is smaller than the sum of its proper divisors (456459712).

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

426891328 is a wasteful number, since it uses less digits than its factorization.

426891328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2225 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 426891328 is about 20661.3486491081. The cubic root of 426891328 is about 752.9609339255.

The spelling of 426891328 in words is "four hundred twenty-six million, eight hundred ninety-one thousand, three hundred twenty-eight".