726165888 has 96 divisors (see below), whose sum is σ = 2243855160. Its totient is φ = 207470592.

The previous prime is 726165871. The next prime is 726165893. The reversal of 726165888 is 888561627.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 726165888.

It is a congruent number.

It is an unprimeable number.

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, 481 + ... + 38112.

Almost surely, 2^726165888 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 726165888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121927580).

726165888 is an abundant number, since it is smaller than the sum of its proper divisors (1517689272).

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

726165888 is a wasteful number, since it uses less digits than its factorization.

726165888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38624 (or 38605 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The square root of 726165888 is about 26947.4653353520. The cubic root of 726165888 is about 898.8321840942.

The spelling of 726165888 in words is "seven hundred twenty-six million, one hundred sixty-five thousand, eight hundred eighty-eight".