22028324 has 6 divisors (see below), whose sum is σ = 38549574. Its totient is φ = 11014160.

The previous prime is 22028323. The next prime is 22028351. The reversal of 22028324 is 42382022.

It can be written as a sum of positive squares in only one way, i.e., 14684224 + 7344100 = 3832^2 + 2710^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22028324.

It is not an unprimeable number, because it can be changed into a prime (22028323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753537 + ... + 2753544.

It is an arithmetic number, because the mean of its divisors is an integer number (6424929).

Almost surely, 2^22028324 is an apocalyptic number.

It is an amenable number.

22028324 is a deficient number, since it is larger than the sum of its proper divisors (16521250).

22028324 is a wasteful number, since it uses less digits than its factorization.

22028324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507085 (or 5507083 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22028324 is about 4693.4341371750. The cubic root of 22028324 is about 280.3241314394.

The spelling of 22028324 in words is "twenty-two million, twenty-eight thousand, three hundred twenty-four".