720043872 has 24 divisors (see below), whose sum is σ = 1890115416. Its totient is φ = 240014592.

The previous prime is 720043859. The next prime is 720043879. The reversal of 720043872 is 278340027.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720043879) 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, 3750133 + ... + 3750324.

It is an arithmetic number, because the mean of its divisors is an integer number (78754809).

Almost surely, 2^720043872 is an apocalyptic number.

It is an amenable number.

720043872 is an abundant number, since it is smaller than the sum of its proper divisors (1170071544).

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

720043872 is a wasteful number, since it uses less digits than its factorization.

720043872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500470 (or 7500462 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 720043872 is about 26833.6332239971. The cubic root of 720043872 is about 896.2991534036.

Adding to 720043872 its reverse (278340027), we get a palindrome (998383899).

The spelling of 720043872 in words is "seven hundred twenty million, forty-three thousand, eight hundred seventy-two".