22174012 has 12 divisors (see below), whose sum is σ = 44348080. Its totient is φ = 9503136.

The previous prime is 22173997. The next prime is 22174013. The reversal of 22174012 is 21047122.

It is a happy number.

22174012 is an admirable number.

It is a super-2 number, since 2×22174012² = 983373616352288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22174013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395937 + ... + 395992.

Almost surely, 2^22174012 is an apocalyptic number.

It is an amenable number.

22174012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22174012 is a wasteful number, since it uses less digits than its factorization.

22174012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791940 (or 791938 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 22174012 is about 4708.9289652744. The cubic root of 22174012 is about 280.9407641841.

The spelling of 22174012 in words is "twenty-two million, one hundred seventy-four thousand, twelve".