22026628 has 24 divisors (see below), whose sum is σ = 43955352. Its totient is φ = 9567744.

The previous prime is 22026601. The next prime is 22026649. The reversal of 22026628 is 82662022.

It can be written as a sum of positive squares in 4 ways, for example, as 4032064 + 17994564 = 2008^2 + 4242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22026596 and 22026605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11575 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (1831473).

Almost surely, 2^22026628 is an apocalyptic number.

It is an amenable number.

22026628 is a deficient number, since it is larger than the sum of its proper divisors (21928724).

22026628 is a wasteful number, since it uses less digits than its factorization.

22026628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24951 (or 24949 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 22026628 is about 4693.2534557597. The cubic root of 22026628 is about 280.3169370363.

The spelling of 22026628 in words is "twenty-two million, twenty-six thousand, six hundred twenty-eight".