12442090 has 16 divisors (see below), whose sum is σ = 22445280. Its totient is φ = 4965840.

The previous prime is 12442081. The next prime is 12442099. The reversal of 12442090 is 9024421.

It is an interprime number because it is at equal distance from previous prime (12442081) and next prime (12442099).

It is not an unprimeable number, because it can be changed into a prime (12442099) 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, 4621 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (1402830).

Almost surely, 2^12442090 is an apocalyptic number.

12442090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12442090 is a deficient number, since it is larger than the sum of its proper divisors (10003190).

12442090 is a wasteful number, since it uses less digits than its factorization.

12442090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12442090 is about 3527.3346878344. The cubic root of 12442090 is about 231.7204942523.

The spelling of 12442090 in words is "twelve million, four hundred forty-two thousand, ninety".