723504398120 has 96 divisors (see below), whose sum is σ = 1895886405000. Its totient is φ = 247767270912.

The previous prime is 723504398039. The next prime is 723504398171. The reversal of 723504398120 is 21893405327.

It is a happy number.

723504398120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 277229628676 + 446274769444 = 526526^2 + 668038^2 .

It is a super-2 number, since 2×723504398120² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1455506 + ... + 1888254.

Almost surely, 2^723504398120 is an apocalyptic number.

723504398120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 723504398120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947943202500).

723504398120 is an abundant number, since it is smaller than the sum of its proper divisors (1172382006880).

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

723504398120 is a wasteful number, since it uses less digits than its factorization.

723504398120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433627 (or 433616 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 723504398120 in words is "seven hundred twenty-three billion, five hundred four million, three hundred ninety-eight thousand, one hundred twenty".