22174730644 has 24 divisors (see below), whose sum is σ = 42567479136. Its totient is φ = 10023732000.

The previous prime is 22174730639. The next prime is 22174730663. The reversal of 22174730644 is 44603747122.

It is a junction number, because it is equal to n+sod(n) for n = 22174730597 and 22174730606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384222 + ... + 1400149.

It is an arithmetic number, because the mean of its divisors is an integer number (1773644964).

Almost surely, 2^22174730644 is an apocalyptic number.

It is an amenable number.

22174730644 is a deficient number, since it is larger than the sum of its proper divisors (20392748492).

22174730644 is a wasteful number, since it uses less digits than its factorization.

22174730644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784567 (or 2784565 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 22174730644 in words is "twenty-two billion, one hundred seventy-four million, seven hundred thirty thousand, six hundred forty-four".