22174940 has 12 divisors (see below), whose sum is σ = 46567416. Its totient is φ = 8869968.

The previous prime is 22174939. The next prime is 22174963. The reversal of 22174940 is 4947122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554354 + ... + 554393.

It is an arithmetic number, because the mean of its divisors is an integer number (3880618).

Almost surely, 2^22174940 is an apocalyptic number.

22174940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22174940 is an abundant number, since it is smaller than the sum of its proper divisors (24392476).

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

22174940 is a wasteful number, since it uses less digits than its factorization.

22174940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108756 (or 1108754 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22174940 is about 4709.0275004506. The cubic root of 22174940 is about 280.9446833274.

The spelling of 22174940 in words is "twenty-two million, one hundred seventy-four thousand, nine hundred forty".