22028036 has 6 divisors (see below), whose sum is σ = 38549070. Its totient is φ = 11014016.

The previous prime is 22027991. The next prime is 22028051. The reversal of 22028036 is 63082022.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 498436 = 4640^2 + 706^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753501 + ... + 2753508.

It is an arithmetic number, because the mean of its divisors is an integer number (6424845).

Almost surely, 2^22028036 is an apocalyptic number.

It is an amenable number.

22028036 is a deficient number, since it is larger than the sum of its proper divisors (16521034).

22028036 is a wasteful number, since it uses less digits than its factorization.

22028036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507013 (or 5507011 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22028036 is about 4693.4034559155. The cubic root of 22028036 is about 280.3229097743.

The spelling of 22028036 in words is "twenty-two million, twenty-eight thousand, thirty-six".