426404304 has 80 divisors (see below), whose sum is σ = 1250039040. Its totient is φ = 139104000.

The previous prime is 426404299. The next prime is 426404311. The reversal of 426404304 is 403404624.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9804 + ... + 30804.

It is an arithmetic number, because the mean of its divisors is an integer number (15625488).

Almost surely, 2^426404304 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 426404304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625019520).

426404304 is an abundant number, since it is smaller than the sum of its proper divisors (823634736).

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

426404304 is a wasteful number, since it uses less digits than its factorization.

426404304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21065 (or 21053 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 426404304 is about 20649.5594141861. The cubic root of 426404304 is about 752.6744835142.

Adding to 426404304 its reverse (403404624), we get a palindrome (829808928).

The spelling of 426404304 in words is "four hundred twenty-six million, four hundred four thousand, three hundred four".