814469928 has 32 divisors (see below), whose sum is σ = 2124705600. Its totient is φ = 259685888.

The previous prime is 814469927. The next prime is 814469939. The reversal of 814469928 is 829964418.

It is a super-2 number, since 2×814469928² = 1326722527232650368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (814469927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737193 + ... + 738296.

It is an arithmetic number, because the mean of its divisors is an integer number (66397050).

Almost surely, 2^814469928 is an apocalyptic number.

It is an amenable number.

814469928 is an abundant number, since it is smaller than the sum of its proper divisors (1310235672).

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

814469928 is a wasteful number, since it uses less digits than its factorization.

814469928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475521 (or 1475517 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 814469928 is about 28538.9195310544. The cubic root of 814469928 is about 933.8813116549.

The spelling of 814469928 in words is "eight hundred fourteen million, four hundred sixty-nine thousand, nine hundred twenty-eight".