426621804 has 96 divisors (see below), whose sum is σ = 1174763520. Its totient is φ = 117980928.

The previous prime is 426621781. The next prime is 426621809. The reversal of 426621804 is 408126624.

It is not an unprimeable number, because it can be changed into a prime (426621809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351102 + ... + 352314.

It is an arithmetic number, because the mean of its divisors is an integer number (12237120).

Almost surely, 2^426621804 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 426621804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587381760).

426621804 is an abundant number, since it is smaller than the sum of its proper divisors (748141716).

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

426621804 is a wasteful number, since it uses less digits than its factorization.

426621804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 426621804 is about 20654.8251989699. The cubic root of 426621804 is about 752.8024363139.

The spelling of 426621804 in words is "four hundred twenty-six million, six hundred twenty-one thousand, eight hundred four".