720231872 has 28 divisors (see below), whose sum is σ = 1430127696. Its totient is φ = 359884800.

The previous prime is 720231851. The next prime is 720231923. The reversal of 720231872 is 278132027.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142997 + ... + 147947.

Almost surely, 2^720231872 is an apocalyptic number.

It is an amenable number.

720231872 is a deficient number, since it is larger than the sum of its proper divisors (709895824).

720231872 is a wasteful number, since it uses less digits than its factorization.

720231872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236 (or 7226 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 720231872 is about 26837.1360618081. The cubic root of 720231872 is about 896.3771530850.

Adding to 720231872 its reverse (278132027), we get a palindrome (998363899).

The spelling of 720231872 in words is "seven hundred twenty million, two hundred thirty-one thousand, eight hundred seventy-two".