720772232 has 16 divisors (see below), whose sum is σ = 1353466140. Its totient is φ = 359847936.

The previous prime is 720772211. The next prime is 720772243. The reversal of 720772232 is 232277027.

It can be written as a sum of positive squares in 2 ways, for example, as 720707716 + 64516 = 26846^2 + 254^2 .

It is a super-2 number, since 2×720772232² = 1039025220844523648, which contains 22 as substring.

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, 61553 + ... + 72320.

Almost surely, 2^720772232 is an apocalyptic number.

It is an amenable number.

720772232 is a deficient number, since it is larger than the sum of its proper divisors (632693908).

720772232 is a wasteful number, since it uses less digits than its factorization.

720772232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134552 (or 134548 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 720772232 is about 26847.2015673887. The cubic root of 720772232 is about 896.6012685375.

The spelling of 720772232 in words is "seven hundred twenty million, seven hundred seventy-two thousand, two hundred thirty-two".