426339904 has 63 divisors (see below), whose sum is σ = 886152787. Its totient is φ = 203506688.

The previous prime is 426339899. The next prime is 426339967. The reversal of 426339904 is 409933624.

The square root of 426339904 is 20648.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 39037504 + 387302400 = 6248^2 + 19680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4790292 + ... + 4790380.

Almost surely, 2^426339904 is an apocalyptic number.

426339904 is the 20648-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426339904

426339904 is an abundant number, since it is smaller than the sum of its proper divisors (459812883).

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

426339904 is an frugal number, since it uses more digits than its factorization.

426339904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The cubic root of 426339904 is about 752.6365893710.

The spelling of 426339904 in words is "four hundred twenty-six million, three hundred thirty-nine thousand, nine hundred four".