720566448 has 80 divisors (see below), whose sum is σ = 2219905536. Its totient is φ = 196922880.

The previous prime is 720566419. The next prime is 720566459. The reversal of 720566448 is 844665027.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38893 + ... + 54348.

Almost surely, 2^720566448 is an apocalyptic number.

It is an amenable number.

720566448 is an abundant number, since it is smaller than the sum of its proper divisors (1499339088).

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

720566448 is a wasteful number, since it uses less digits than its factorization.

720566448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93282 (or 93276 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 720566448 is about 26843.3687900755. The cubic root of 720566448 is about 896.5159323988.

The spelling of 720566448 in words is "seven hundred twenty million, five hundred sixty-six thousand, four hundred forty-eight".