814928380 has 24 divisors (see below), whose sum is σ = 1955828448. Its totient is φ = 279403968.

The previous prime is 814928357. The next prime is 814928399. The reversal of 814928380 is 83829418.

814928380 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 7 ways as a sum of consecutive naturals, for example, 2910319 + ... + 2910598.

It is an arithmetic number, because the mean of its divisors is an integer number (81492852).

Almost surely, 2^814928380 is an apocalyptic number.

It is an amenable number.

814928380 is an abundant number, since it is smaller than the sum of its proper divisors (1140900068).

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

814928380 is a wasteful number, since it uses less digits than its factorization.

814928380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820933 (or 5820931 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 814928380 is about 28546.9504500919. The cubic root of 814928380 is about 934.0565010366.

The spelling of 814928380 in words is "eight hundred fourteen million, nine hundred twenty-eight thousand, three hundred eighty".