723264 has 28 divisors (see below), whose sum is σ = 1914144. Its totient is φ = 241024.

The previous prime is 723263. The next prime is 723269. The reversal of 723264 is 462327.

It is a super-2 number, since 2×723264² = 1046221627392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 7³ + 2¹⁷ + 2¹⁹ + 3⁶ + 6⁴ + 4⁸ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723264.

It is not an unprimeable number, because it can be changed into a prime (723263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692 + ... + 2075.

2⁷²³²⁶⁴ is an apocalyptic number.

It is an amenable number.

723264 is an abundant number, since it is smaller than the sum of its proper divisors (1190880).

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

723264 is a wasteful number, since it uses less digits than its factorization.

723264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782 (or 3772 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 723264 is about 850.4492930210. The cubic root of 723264 is about 89.7633287933.

The spelling of 723264 in words is "seven hundred twenty-three thousand, two hundred sixty-four".