12432838 has 16 divisors (see below), whose sum is σ = 20400336. Its totient is φ = 5635840.

The previous prime is 12432809. The next prime is 12432839. The reversal of 12432838 is 83823421.

It is a super-5 number, since 5×12432838⁵ (a number of 37 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432839) 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, 12570 + ... + 13522.

It is an arithmetic number, because the mean of its divisors is an integer number (1275021).

Almost surely, 2^12432838 is an apocalyptic number.

12432838 is a deficient number, since it is larger than the sum of its proper divisors (7967498).

12432838 is a wasteful number, since it uses less digits than its factorization.

12432838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559.

The product of its digits is 9216, while the sum is 31.

The square root of 12432838 is about 3526.0229721316. The cubic root of 12432838 is about 231.6630438392.

The spelling of 12432838 in words is "twelve million, four hundred thirty-two thousand, eight hundred thirty-eight".