12039818 has 8 divisors (see below), whose sum is σ = 20639712. Its totient is φ = 5159916.

The previous prime is 12039803. The next prime is 12039821. The reversal of 12039818 is 81893021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429980 + ... + 430007.

It is an arithmetic number, because the mean of its divisors is an integer number (2579964).

Almost surely, 2^12039818 is an apocalyptic number.

12039818 is a deficient number, since it is larger than the sum of its proper divisors (8599894).

12039818 is an equidigital number, since it uses as much as digits as its factorization.

12039818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859996.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 12039818 is about 3469.8440887164. The cubic root of 12039818 is about 229.1957924561.

The spelling of 12039818 in words is "twelve million, thirty-nine thousand, eight hundred eighteen".