816022 has 4 divisors (see below), whose sum is σ = 1224036. Its totient is φ = 408010.

The previous prime is 816019. The next prime is 816037. The reversal of 816022 is 220618.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204004 + ... + 204007.

It is an arithmetic number, because the mean of its divisors is an integer number (306009).

2⁸¹⁶⁰²² is an apocalyptic number.

816022 is a deficient number, since it is larger than the sum of its proper divisors (408014).

816022 is a wasteful number, since it uses less digits than its factorization.

816022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408013.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 816022 is about 903.3393603735. The cubic root of 816022 is about 93.4474143572.

Subtracting from 816022 its sum of digits (19), we obtain a triangular number (816003 = T₁₂₇₇).

The spelling of 816022 in words is "eight hundred sixteen thousand, twenty-two".