22173030 has 48 divisors (see below), whose sum is σ = 62893584. Its totient is φ = 5375040.

The previous prime is 22173007. The next prime is 22173031. The reversal of 22173030 is 3037122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22172994 and 22173012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10209 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (1310283).

Almost surely, 2^22173030 is an apocalyptic number.

22173030 is an abundant number, since it is smaller than the sum of its proper divisors (40720554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22173030 is a wasteful number, since it uses less digits than its factorization.

22173030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22421 (or 22418 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 22173030 is about 4708.8246941249. The cubic root of 22173030 is about 280.9366168681.

The spelling of 22173030 in words is "twenty-two million, one hundred seventy-three thousand, thirty".