723263428 has 24 divisors (see below), whose sum is σ = 1334374272. Its totient is φ = 342338304.

The previous prime is 723263423. The next prime is 723263461. The reversal of 723263428 is 824362327.

723263428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×723263428² = 1046219972564622368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (723263423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31600 + ... + 49447.

It is an arithmetic number, because the mean of its divisors is an integer number (55598928).

Almost surely, 2^723263428 is an apocalyptic number.

It is an amenable number.

723263428 is a deficient number, since it is larger than the sum of its proper divisors (611110844).

723263428 is a wasteful number, since it uses less digits than its factorization.

723263428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81171 (or 81169 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 723263428 is about 26893.5573697494. The cubic root of 723263428 is about 897.6330512988.

The spelling of 723263428 in words is "seven hundred twenty-three million, two hundred sixty-three thousand, four hundred twenty-eight".