726641560 has 16 divisors (see below), whose sum is σ = 1634943600. Its totient is φ = 290656608.

The previous prime is 726641537. The next prime is 726641579. The reversal of 726641560 is 65146627.

It is a happy number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 9082980 + ... + 9083059.

It is an arithmetic number, because the mean of its divisors is an integer number (102183975).

Almost surely, 2^726641560 is an apocalyptic number.

It is an amenable number.

726641560 is an abundant number, since it is smaller than the sum of its proper divisors (908302040).

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

726641560 is a wasteful number, since it uses less digits than its factorization.

726641560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18166050 (or 18166046 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 726641560 is about 26956.2898040513. The cubic root of 726641560 is about 899.0284000410.

The spelling of 726641560 in words is "seven hundred twenty-six million, six hundred forty-one thousand, five hundred sixty".