726064554 has 32 divisors (see below), whose sum is σ = 1493775360. Its totient is φ = 235155312.

The previous prime is 726064541. The next prime is 726064583. The reversal of 726064554 is 455460627.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29937 + ... + 48459.

It is an arithmetic number, because the mean of its divisors is an integer number (46680480).

Almost surely, 2^726064554 is an apocalyptic number.

726064554 is an abundant number, since it is smaller than the sum of its proper divisors (767710806).

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

726064554 is a wasteful number, since it uses less digits than its factorization.

726064554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18714.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 726064554 is about 26945.5850558120. The cubic root of 726064554 is about 898.7903724829.

The spelling of 726064554 in words is "seven hundred twenty-six million, sixty-four thousand, five hundred fifty-four".