720185982 has 64 divisors (see below), whose sum is σ = 1576986624. Its totient is φ = 218592000.

The previous prime is 720185981. The next prime is 720186007. The reversal of 720185982 is 289581027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720185981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238482 + ... + 241482.

It is an arithmetic number, because the mean of its divisors is an integer number (24640416).

Almost surely, 2^720185982 is an apocalyptic number.

720185982 is an abundant number, since it is smaller than the sum of its proper divisors (856800642).

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

720185982 is a wasteful number, since it uses less digits than its factorization.

720185982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 720185982 is about 26836.2810761849. The cubic root of 720185982 is about 896.3581149470.

The spelling of 720185982 in words is "seven hundred twenty million, one hundred eighty-five thousand, nine hundred eighty-two".