720049972 has 24 divisors (see below), whose sum is σ = 1270352160. Its totient is φ = 357104160.

The previous prime is 720049969. The next prime is 720049987. The reversal of 720049972 is 279940027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297447 + ... + 299857.

It is an arithmetic number, because the mean of its divisors is an integer number (52931340).

Almost surely, 2^720049972 is an apocalyptic number.

It is an amenable number.

720049972 is a deficient number, since it is larger than the sum of its proper divisors (550302188).

720049972 is a wasteful number, since it uses less digits than its factorization.

720049972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991 (or 2989 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 720049972 is about 26833.7468870823. The cubic root of 720049972 is about 896.3016844575.

Adding to 720049972 its reverse (279940027), we get a palindrome (999989999).

The spelling of 720049972 in words is "seven hundred twenty million, forty-nine thousand, nine hundred seventy-two".