22513790 has 16 divisors (see below), whose sum is σ = 43642368. Its totient is φ = 8312736.

The previous prime is 22513789. The next prime is 22513793. The reversal of 22513790 is 9731522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86462 + ... + 86721.

It is an arithmetic number, because the mean of its divisors is an integer number (2727648).

Almost surely, 2^22513790 is an apocalyptic number.

22513790 is a deficient number, since it is larger than the sum of its proper divisors (21128578).

22513790 is a wasteful number, since it uses less digits than its factorization.

22513790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173203.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 22513790 is about 4744.8698612291. The cubic root of 22513790 is about 282.3684719381.

The spelling of 22513790 in words is "twenty-two million, five hundred thirteen thousand, seven hundred ninety".