22085590 has 8 divisors (see below), whose sum is σ = 39754080. Its totient is φ = 8834232.

The previous prime is 22085587. The next prime is 22085611. The reversal of 22085590 is 9558022.

It is a happy number.

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

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, 1104270 + ... + 1104289.

It is an arithmetic number, because the mean of its divisors is an integer number (4969260).

Almost surely, 2^22085590 is an apocalyptic number.

22085590 is a deficient number, since it is larger than the sum of its proper divisors (17668490).

22085590 is a wasteful number, since it uses less digits than its factorization.

22085590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208566.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 22085590 is about 4699.5308276465. The cubic root of 22085590 is about 280.5668364070.

The spelling of 22085590 in words is "twenty-two million, eighty-five thousand, five hundred ninety".