816445722 has 16 divisors (see below), whose sum is σ = 1635109920. Its totient is φ = 271778832.

The previous prime is 816445711. The next prime is 816445727. The reversal of 816445722 is 227544618.

816445722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (816445727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87633 + ... + 96500.

It is an arithmetic number, because the mean of its divisors is an integer number (102194370).

Almost surely, 2^816445722 is an apocalyptic number.

816445722 is an abundant number, since it is smaller than the sum of its proper divisors (818664198).

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

816445722 is a wasteful number, since it uses less digits than its factorization.

816445722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184877.

The product of its digits is 107520, while the sum is 39.

The square root of 816445722 is about 28573.5143445814. The cubic root of 816445722 is about 934.6358584681.

The spelling of 816445722 in words is "eight hundred sixteen million, four hundred forty-five thousand, seven hundred twenty-two".