816044312 has 16 divisors (see below), whose sum is σ = 1534083840. Its totient is φ = 406955296.

The previous prime is 816044309. The next prime is 816044371. The reversal of 816044312 is 213440618.

It is a super-3 number, since 3×816044312³ (a number of 28 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 130103 + ... + 136230.

It is an arithmetic number, because the mean of its divisors is an integer number (95880240).

Almost surely, 2^816044312 is an apocalyptic number.

It is an amenable number.

816044312 is a deficient number, since it is larger than the sum of its proper divisors (718039528).

816044312 is a wasteful number, since it uses less digits than its factorization.

816044312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266722 (or 266718 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 816044312 is about 28566.4893187805. The cubic root of 816044312 is about 934.4826604164.

The spelling of 816044312 in words is "eight hundred sixteen million, forty-four thousand, three hundred twelve".