22173328 has 10 divisors (see below), whose sum is σ = 42960854. Its totient is φ = 11086656.

The previous prime is 22173301. The next prime is 22173329. The reversal of 22173328 is 82337122.

It can be written as a sum of positive squares in only one way, i.e., 21827584 + 345744 = 4672^2 + 588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22173296 and 22173305.

It is not an unprimeable number, because it can be changed into a prime (22173329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692901 + ... + 692932.

Almost surely, 2^22173328 is an apocalyptic number.

It is an amenable number.

22173328 is a deficient number, since it is larger than the sum of its proper divisors (20787526).

22173328 is a wasteful number, since it uses less digits than its factorization.

22173328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385841 (or 1385835 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 22173328 is about 4708.8563367340. The cubic root of 22173328 is about 280.9378754352.

The spelling of 22173328 in words is "twenty-two million, one hundred seventy-three thousand, three hundred twenty-eight".