426345984 has 80 divisors (see below), whose sum is σ = 1262054640. Its totient is φ = 142110720.

The previous prime is 426345971. The next prime is 426346027. The reversal of 426345984 is 489543624.

426345984 is a `hidden beast` number, since 4 + 2 + 634 + 5 + 9 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 29244.

It is an arithmetic number, because the mean of its divisors is an integer number (15775683).

Almost surely, 2^426345984 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 426345984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631027320).

426345984 is an abundant number, since it is smaller than the sum of its proper divisors (835708656).

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

426345984 is an equidigital number, since it uses as much as digits as its factorization.

426345984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30868 (or 30846 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 426345984 is about 20648.1472292310. The cubic root of 426345984 is about 752.6401671178.

The spelling of 426345984 in words is "four hundred twenty-six million, three hundred forty-five thousand, nine hundred eighty-four".