22372156 has 6 divisors (see below), whose sum is σ = 39151280. Its totient is φ = 11186076.

The previous prime is 22372127. The next prime is 22372159. The reversal of 22372156 is 65127322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22372159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2796516 + ... + 2796523.

Almost surely, 2^22372156 is an apocalyptic number.

It is an amenable number.

22372156 is a deficient number, since it is larger than the sum of its proper divisors (16779124).

22372156 is a wasteful number, since it uses less digits than its factorization.

22372156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593043 (or 5593041 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 22372156 is about 4729.9213524117. The cubic root of 22372156 is about 281.7751002665.

Adding to 22372156 its reverse (65127322), we get a palindrome (87499478).

The spelling of 22372156 in words is "twenty-two million, three hundred seventy-two thousand, one hundred fifty-six".