723315472 has 40 divisors (see below), whose sum is σ = 1536901632. Its totient is φ = 327043200.

The previous prime is 723315409. The next prime is 723315493. The reversal of 723315472 is 274513327.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22858 + ... + 44374.

Almost surely, 2^723315472 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 723315472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768450816).

723315472 is an abundant number, since it is smaller than the sum of its proper divisors (813586160).

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

723315472 is a wasteful number, since it uses less digits than its factorization.

723315472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727 (or 21721 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 723315472 is about 26894.5249446797. The cubic root of 723315472 is about 897.6545811648.

Adding to 723315472 its reverse (274513327), we get a palindrome (997828799).

The spelling of 723315472 in words is "seven hundred twenty-three million, three hundred fifteen thousand, four hundred seventy-two".