816090422 has 32 divisors (see below), whose sum is σ = 1435180032. Its totient is φ = 340778304.

The previous prime is 816090383. The next prime is 816090437. The reversal of 816090422 is 224090618.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 150653 + ... + 155975.

It is an arithmetic number, because the mean of its divisors is an integer number (44849376).

Almost surely, 2^816090422 is an apocalyptic number.

816090422 is a deficient number, since it is larger than the sum of its proper divisors (619089610).

816090422 is a wasteful number, since it uses less digits than its factorization.

816090422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 816090422 is about 28567.2963719005. The cubic root of 816090422 is about 934.5002608429.

The spelling of 816090422 in words is "eight hundred sixteen million, ninety thousand, four hundred twenty-two".