12039838 has 4 divisors (see below), whose sum is σ = 18059760. Its totient is φ = 6019918.

The previous prime is 12039829. The next prime is 12039869. The reversal of 12039838 is 83893021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3009958 + ... + 3009961.

It is an arithmetic number, because the mean of its divisors is an integer number (4514940).

Almost surely, 2^12039838 is an apocalyptic number.

12039838 is a deficient number, since it is larger than the sum of its proper divisors (6019922).

12039838 is an equidigital number, since it uses as much as digits as its factorization.

12039838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019921.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 12039838 is about 3469.8469706891. The cubic root of 12039838 is about 229.1959193659.

The spelling of 12039838 in words is "twelve million, thirty-nine thousand, eight hundred thirty-eight".