816227824 has 20 divisors (see below), whose sum is σ = 1607368600. Its totient is φ = 401423040.

The previous prime is 816227663. The next prime is 816227831. The reversal of 816227824 is 428722618.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417174 + ... + 419125.

It is an arithmetic number, because the mean of its divisors is an integer number (80368430).

Almost surely, 2^816227824 is an apocalyptic number.

It is an amenable number.

816227824 is a deficient number, since it is larger than the sum of its proper divisors (791140776).

816227824 is a wasteful number, since it uses less digits than its factorization.

816227824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836368 (or 836362 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 816227824 is about 28569.7011534948. The cubic root of 816227824 is about 934.5527039693.

The spelling of 816227824 in words is "eight hundred sixteen million, two hundred twenty-seven thousand, eight hundred twenty-four".