720737272 has 16 divisors (see below), whose sum is σ = 1361248560. Its totient is φ = 357737664.

The previous prime is 720737239. The next prime is 720737299. The reversal of 720737272 is 272737027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327708 + ... + 329899.

It is an arithmetic number, because the mean of its divisors is an integer number (85078035).

Almost surely, 2^720737272 is an apocalyptic number.

It is an amenable number.

720737272 is a deficient number, since it is larger than the sum of its proper divisors (640511288).

720737272 is a wasteful number, since it uses less digits than its factorization.

720737272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657750 (or 657746 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 37.

The square root of 720737272 is about 26846.5504674250. The cubic root of 720737272 is about 896.5867721932.

The spelling of 720737272 in words is "seven hundred twenty million, seven hundred thirty-seven thousand, two hundred seventy-two".