723730464 has 120 divisors (see below), whose sum is σ = 2197375488. Its totient is φ = 233435520.

The previous prime is 723730457. The next prime is 723730493. The reversal of 723730464 is 464037327.

It is a happy number.

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 polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75849 + ... + 84855.

Almost surely, 2^723730464 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 723730464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098687744).

723730464 is an abundant number, since it is smaller than the sum of its proper divisors (1473645024).

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

723730464 is a wasteful number, since it uses less digits than its factorization.

723730464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060 (or 9043 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The square root of 723730464 is about 26902.2390146248. The cubic root of 723730464 is about 897.8262205414.

The spelling of 723730464 in words is "seven hundred twenty-three million, seven hundred thirty thousand, four hundred sixty-four".