720213804 has 36 divisors (see below), whose sum is σ = 1821403584. Its totient is φ = 239957472.

The previous prime is 720213803. The next prime is 720213817. The reversal of 720213804 is 408312027.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (720213803) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 110854 + ... + 117170.

It is an arithmetic number, because the mean of its divisors is an integer number (50594544).

Almost surely, 2^720213804 is an apocalyptic number.

It is an amenable number.

720213804 is an abundant number, since it is smaller than the sum of its proper divisors (1101189780).

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

720213804 is a wasteful number, since it uses less digits than its factorization.

720213804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494 (or 9489 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 720213804 is about 26836.7994365945. The cubic root of 720213804 is about 896.3696574074.

The spelling of 720213804 in words is "seven hundred twenty million, two hundred thirteen thousand, eight hundred four".