22137790 has 16 divisors (see below), whose sum is σ = 40236768. Its totient is φ = 8768736.

The previous prime is 22137781. The next prime is 22137833. The reversal of 22137790 is 9773122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9717 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (2514798).

Almost surely, 2^22137790 is an apocalyptic number.

22137790 is a deficient number, since it is larger than the sum of its proper divisors (18098978).

22137790 is a wasteful number, since it uses less digits than its factorization.

22137790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21603.

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

The square root of 22137790 is about 4705.0812957908. The cubic root of 22137790 is about 280.7877053921.

The spelling of 22137790 in words is "twenty-two million, one hundred thirty-seven thousand, seven hundred ninety".