22157796 has 24 divisors (see below), whose sum is σ = 52284960. Its totient is φ = 7302592.

The previous prime is 22157789. The next prime is 22157797. The reversal of 22157796 is 69775122.

It is not an unprimeable number, because it can be changed into a prime (22157797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9306 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^22157796 is an apocalyptic number.

It is an amenable number.

22157796 is an abundant number, since it is smaller than the sum of its proper divisors (30127164).

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

22157796 is a wasteful number, since it uses less digits than its factorization.

22157796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20843 (or 20841 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 22157796 is about 4707.2068150868. The cubic root of 22157796 is about 280.8722628768.

It can be divided in two parts, 2215 and 7796, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 22157796 in words is "twenty-two million, one hundred fifty-seven thousand, seven hundred ninety-six".