22291996 has 12 divisors (see below), whose sum is σ = 39069352. Its totient is φ = 11129328.

The previous prime is 22291967. The next prime is 22291999. The reversal of 22291996 is 69919222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22291999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870 + ... + 6733.

Almost surely, 2^22291996 is an apocalyptic number.

It is an amenable number.

22291996 is a deficient number, since it is larger than the sum of its proper divisors (16777356).

22291996 is a wasteful number, since it uses less digits than its factorization.

22291996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8340 (or 8338 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The square root of 22291996 is about 4721.4400345657. The cubic root of 22291996 is about 281.4381617588.

It can be divided in two parts, 2229 and 1996, that added together give a square (4225 = 65²).

The spelling of 22291996 in words is "twenty-two million, two hundred ninety-one thousand, nine hundred ninety-six".