726158464 has 32 divisors (see below), whose sum is σ = 1467037440. Its totient is φ = 357960960.

The previous prime is 726158443. The next prime is 726158479. The reversal of 726158464 is 464851627.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×726158464² = 1054612229677678592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 726158464.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30864 + ... + 49039.

It is an arithmetic number, because the mean of its divisors is an integer number (45844920).

Almost surely, 2^726158464 is an apocalyptic number.

It is an amenable number.

726158464 is an abundant number, since it is smaller than the sum of its proper divisors (740878976).

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

726158464 is an equidigital number, since it uses as much as digits as its factorization.

726158464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79988 (or 79976 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 726158464 is about 26947.3275854954. The cubic root of 726158464 is about 898.8291209957.

The spelling of 726158464 in words is "seven hundred twenty-six million, one hundred fifty-eight thousand, four hundred sixty-four".