720885474 has 32 divisors (see below), whose sum is σ = 1607911680. Its totient is φ = 239403600.

The previous prime is 720885463. The next prime is 720885511. The reversal of 720885474 is 474588027.

720885474 is a `hidden beast` number, since 7 + 20 + 88 + 547 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9997 + ... + 39264.

It is an arithmetic number, because the mean of its divisors is an integer number (50247240).

Almost surely, 2^720885474 is an apocalyptic number.

720885474 is an abundant number, since it is smaller than the sum of its proper divisors (887026206).

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

720885474 is a wasteful number, since it uses less digits than its factorization.

720885474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49543 (or 49537 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 720885474 is about 26849.3104939401. The cubic root of 720885474 is about 896.6482216985.

The spelling of 720885474 in words is "seven hundred twenty million, eight hundred eighty-five thousand, four hundred seventy-four".