720862272 has 84 divisors (see below), whose sum is σ = 2225184780. Its totient is φ = 221801472.

The previous prime is 720862249. The next prime is 720862283. The reversal of 720862272 is 272268027.

720862272 is a `hidden beast` number, since 7 + 20 + 8 + 622 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 470716416 + 250145856 = 21696^2 + 15816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40647 + ... + 55622.

It is an arithmetic number, because the mean of its divisors is an integer number (26490295).

Almost surely, 2^720862272 is an apocalyptic number.

720862272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

720862272 is an abundant number, since it is smaller than the sum of its proper divisors (1504322508).

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

720862272 is a wasteful number, since it uses less digits than its factorization.

720862272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96300 (or 96287 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 720862272 is about 26848.8784123285. The cubic root of 720862272 is about 896.6386019294.

The spelling of 720862272 in words is "seven hundred twenty million, eight hundred sixty-two thousand, two hundred seventy-two".