12390022 has 16 divisors (see below), whose sum is σ = 19070640. Its totient is φ = 6034912.

The previous prime is 12390019. The next prime is 12390029. The reversal of 12390022 is 22009321.

It is a happy number.

12390022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390029) 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, 18648 + ... + 19300.

It is an arithmetic number, because the mean of its divisors is an integer number (1191915).

Almost surely, 2^12390022 is an apocalyptic number.

12390022 is a deficient number, since it is larger than the sum of its proper divisors (6680618).

12390022 is a wasteful number, since it uses less digits than its factorization.

12390022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12390022 is about 3519.9463064087. The cubic root of 12390022 is about 231.3968055412.

Adding to 12390022 its reverse (22009321), we get a palindrome (34399343).

The spelling of 12390022 in words is "twelve million, three hundred ninety thousand, twenty-two".