814755990 has 32 divisors (see below), whose sum is σ = 1972727136. Its totient is φ = 215344640.

The previous prime is 814755973. The next prime is 814756003. The reversal of 814755990 is 99557418.

It is a congruent number.

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, 116781 + ... + 123560.

It is an arithmetic number, because the mean of its divisors is an integer number (61647723).

Almost surely, 2^814755990 is an apocalyptic number.

814755990 is an abundant number, since it is smaller than the sum of its proper divisors (1157971146).

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

814755990 is a wasteful number, since it uses less digits than its factorization.

814755990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240464.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 814755990 is about 28543.9308785598. The cubic root of 814755990 is about 933.9906329351.

The spelling of 814755990 in words is "eight hundred fourteen million, seven hundred fifty-five thousand, nine hundred ninety".