12239790 has 16 divisors (see below), whose sum is σ = 29375568. Its totient is φ = 3263936.

The previous prime is 12239753. The next prime is 12239791. The reversal of 12239790 is 9793221.

12239790 is nontrivially palindromic in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12239791) 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, 203967 + ... + 204026.

It is an arithmetic number, because the mean of its divisors is an integer number (1835973).

Almost surely, 2^12239790 is an apocalyptic number.

12239790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12239790 is an abundant number, since it is smaller than the sum of its proper divisors (17135778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12239790 is a wasteful number, since it uses less digits than its factorization.

12239790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408003.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12239790 is about 3498.5411245261. The cubic root of 12239790 is about 230.4577525098.

The spelling of 12239790 in words is "twelve million, two hundred thirty-nine thousand, seven hundred ninety".