822161396 has 24 divisors (see below), whose sum is σ = 1677883200. Its totient is φ = 352354296.

The previous prime is 822161393. The next prime is 822161411. The reversal of 822161396 is 693161228.

It is a happy number.

It is a super-2 number, since 2×822161396² = 1351898722145337632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822161393) 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, 298250 + ... + 300993.

It is an arithmetic number, because the mean of its divisors is an integer number (69911800).

Almost surely, 2^822161396 is an apocalyptic number.

It is an amenable number.

822161396 is an abundant number, since it is smaller than the sum of its proper divisors (855721804).

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

822161396 is a wasteful number, since it uses less digits than its factorization.

822161396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599268 (or 599252 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 822161396 is about 28673.3569014861. The cubic root of 822161396 is about 936.8118169932.

The spelling of 822161396 in words is "eight hundred twenty-two million, one hundred sixty-one thousand, three hundred ninety-six".