22255790 has 8 divisors (see below), whose sum is σ = 40060440. Its totient is φ = 8902312.

The previous prime is 22255781. The next prime is 22255829. The reversal of 22255790 is 9755222.

It is a happy number.

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

It is a Curzon number.

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, 1112780 + ... + 1112799.

It is an arithmetic number, because the mean of its divisors is an integer number (5007555).

Almost surely, 2^22255790 is an apocalyptic number.

22255790 is a deficient number, since it is larger than the sum of its proper divisors (17804650).

22255790 is a wasteful number, since it uses less digits than its factorization.

22255790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225586.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 22255790 is about 4717.6042648785. The cubic root of 22255790 is about 281.2857113502.

The spelling of 22255790 in words is "twenty-two million, two hundred fifty-five thousand, seven hundred ninety".