22628156 has 12 divisors (see below), whose sum is σ = 41928768. Its totient is φ = 10648512.

The previous prime is 22628131. The next prime is 22628231. The reversal of 22628156 is 65182622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166316 + ... + 166451.

It is an arithmetic number, because the mean of its divisors is an integer number (3494064).

Almost surely, 2^22628156 is an apocalyptic number.

It is an amenable number.

22628156 is a deficient number, since it is larger than the sum of its proper divisors (19300612).

22628156 is a wasteful number, since it uses less digits than its factorization.

22628156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332788 (or 332786 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 22628156 is about 4756.9061373964. The cubic root of 22628156 is about 282.8457916162.

It can be divided in two parts, 226 and 28156, that added together give a palindrome (28382).

The spelling of 22628156 in words is "twenty-two million, six hundred twenty-eight thousand, one hundred fifty-six".