12173424 has 20 divisors (see below), whose sum is σ = 31448136. Its totient is φ = 4057792.

The previous prime is 12173419. The next prime is 12173453. The reversal of 12173424 is 42437121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12173394 and 12173403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126759 + ... + 126854.

Almost surely, 2^12173424 is an apocalyptic number.

It is an amenable number.

12173424 is an abundant number, since it is smaller than the sum of its proper divisors (19274712).

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

12173424 is a wasteful number, since it uses less digits than its factorization.

12173424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253624 (or 253618 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 12173424 is about 3489.0434219138. The cubic root of 12173424 is about 230.0404717690.

The spelling of 12173424 in words is "twelve million, one hundred seventy-three thousand, four hundred twenty-four".