22173790 has 8 divisors (see below), whose sum is σ = 39912840. Its totient is φ = 8869512.

The previous prime is 22173787. The next prime is 22173791. The reversal of 22173790 is 9737122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173791) 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, 1108680 + ... + 1108699.

It is an arithmetic number, because the mean of its divisors is an integer number (4989105).

Almost surely, 2^22173790 is an apocalyptic number.

22173790 is a deficient number, since it is larger than the sum of its proper divisors (17739050).

22173790 is a wasteful number, since it uses less digits than its factorization.

22173790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217386.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 22173790 is about 4708.9053929762. The cubic root of 22173790 is about 280.9398266142.

The spelling of 22173790 in words is "twenty-two million, one hundred seventy-three thousand, seven hundred ninety".