22415228 has 24 divisors (see below), whose sum is σ = 42913920. Its totient is φ = 10159920.

The previous prime is 22415209. The next prime is 22415249. The reversal of 22415228 is 82251422.

It is a junction number, because it is equal to n+sod(n) for n = 22415197 and 22415206.

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 7 ways as a sum of consecutive naturals, for example, 26825 + ... + 27647.

It is an arithmetic number, because the mean of its divisors is an integer number (1788080).

Almost surely, 2^22415228 is an apocalyptic number.

It is an amenable number.

22415228 is a deficient number, since it is larger than the sum of its proper divisors (20498692).

22415228 is a wasteful number, since it uses less digits than its factorization.

22415228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457 (or 1455 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 22415228 is about 4734.4723042806. The cubic root of 22415228 is about 281.9558135419.

The spelling of 22415228 in words is "twenty-two million, four hundred fifteen thousand, two hundred twenty-eight".