22628828 has 6 divisors (see below), whose sum is σ = 39600456. Its totient is φ = 11314412.

The previous prime is 22628821. The next prime is 22628833. The reversal of 22628828 is 82882622.

It is a junction number, because it is equal to n+sod(n) for n = 22628791 and 22628800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22628821) by changing a digit.

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 as a sum of consecutive naturals, namely, 2828600 + ... + 2828607.

It is an arithmetic number, because the mean of its divisors is an integer number (6600076).

Almost surely, 2^22628828 is an apocalyptic number.

It is an amenable number.

22628828 is a deficient number, since it is larger than the sum of its proper divisors (16971628).

22628828 is a wasteful number, since it uses less digits than its factorization.

22628828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657211 (or 5657209 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 22628828 is about 4756.9767710175. The cubic root of 22628828 is about 282.8485915275.

The spelling of 22628828 in words is "twenty-two million, six hundred twenty-eight thousand, eight hundred twenty-eight".