726326460 has 96 divisors (see below), whose sum is σ = 2337652800. Its totient is φ = 187004160.

The previous prime is 726326441. The next prime is 726326477. The reversal of 726326460 is 64623627.

It is a happy number.

726326460 is a `hidden beast` number, since 7 + 2 + 6 + 3 + 2 + 646 + 0 = 666.

It is a super-2 number, since 2×726326460² = 1055100252992263200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 7531 + ... + 38850.

It is an arithmetic number, because the mean of its divisors is an integer number (24350550).

Almost surely, 2^726326460 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 726326460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168826400).

726326460 is an abundant number, since it is smaller than the sum of its proper divisors (1611326340).

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

726326460 is a wasteful number, since it uses less digits than its factorization.

726326460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46428 (or 46420 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 726326460 is about 26950.4445232356. Note that the first 3 decimals coincide. The cubic root of 726326460 is about 898.8984300430.

The spelling of 726326460 in words is "seven hundred twenty-six million, three hundred twenty-six thousand, four hundred sixty".