12998438 has 16 divisors (see below), whose sum is σ = 21358080. Its totient is φ = 5905536.

The previous prime is 12998437. The next prime is 12998441. The reversal of 12998438 is 83489921.

It is a happy number.

12998438 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 (12998431) 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, 5606 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (1334880).

Almost surely, 2^12998438 is an apocalyptic number.

12998438 is a deficient number, since it is larger than the sum of its proper divisors (8359642).

12998438 is a wasteful number, since it uses less digits than its factorization.

12998438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231.

The product of its digits is 124416, while the sum is 44.

The square root of 12998438 is about 3605.3346585303. The cubic root of 12998438 is about 235.1240509980.

The spelling of 12998438 in words is "twelve million, nine hundred ninety-eight thousand, four hundred thirty-eight".