22107790 has 8 divisors (see below), whose sum is σ = 39794040. Its totient is φ = 8843112.

The previous prime is 22107781. The next prime is 22107791. The reversal of 22107790 is 9770122.

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 not an unprimeable number, because it can be changed into a prime (22107791) 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, 1105380 + ... + 1105399.

It is an arithmetic number, because the mean of its divisors is an integer number (4974255).

Almost surely, 2^22107790 is an apocalyptic number.

22107790 is a deficient number, since it is larger than the sum of its proper divisors (17686250).

22107790 is a wasteful number, since it uses less digits than its factorization.

22107790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210786.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 22107790 is about 4701.8921723068. The cubic root of 22107790 is about 280.6608116790.

It can be divided in two parts, 2210 and 7790, that added together give a 4-th power (10000 = 10⁴).

The spelling of 22107790 in words is "twenty-two million, one hundred seven thousand, seven hundred ninety".