726405204 has 36 divisors (see below), whose sum is σ = 1971672864. Its totient is φ = 207544176.

The previous prime is 726405203. The next prime is 726405233. The reversal of 726405204 is 402504627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726405203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617104 + ... + 618279.

Almost surely, 2^726405204 is an apocalyptic number.

It is an amenable number.

726405204 is an abundant number, since it is smaller than the sum of its proper divisors (1245267660).

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

726405204 is a wasteful number, since it uses less digits than its factorization.

726405204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235404 (or 1235395 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 726405204 is about 26951.9053871892. The cubic root of 726405204 is about 898.9309132784.

The spelling of 726405204 in words is "seven hundred twenty-six million, four hundred five thousand, two hundred four".