718574990 has 64 divisors (see below), whose sum is σ = 1504548864. Its totient is φ = 242016768.

The previous prime is 718574981. The next prime is 718575019. The reversal of 718574990 is 99475817.

718574990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1957787 + ... + 1958153.

It is an arithmetic number, because the mean of its divisors is an integer number (23508576).

Almost surely, 2^718574990 is an apocalyptic number.

718574990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

718574990 is an abundant number, since it is smaller than the sum of its proper divisors (785973874).

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

718574990 is a wasteful number, since it uses less digits than its factorization.

718574990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 718574990 is about 26806.2490848683. The cubic root of 718574990 is about 895.6892581760.

The spelling of 718574990 in words is "seven hundred eighteen million, five hundred seventy-four thousand, nine hundred ninety".