22081396 has 12 divisors (see below), whose sum is σ = 38729152. Its totient is φ = 11015928.

The previous prime is 22081387. The next prime is 22081429. The reversal of 22081396 is 69318022.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 4110 + ... + 7813.

Almost surely, 2^22081396 is an apocalyptic number.

It is an amenable number.

22081396 is a deficient number, since it is larger than the sum of its proper divisors (16647756).

22081396 is a wasteful number, since it uses less digits than its factorization.

22081396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390 (or 12388 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22081396 is about 4699.0845917051. The cubic root of 22081396 is about 280.5490756287.

It can be divided in two parts, 220 and 81396, that multiplied together give a triangular number (17907120 = T₅₉₈₄).

The spelling of 22081396 in words is "twenty-two million, eighty-one thousand, three hundred ninety-six".