12039816 has 16 divisors (see below), whose sum is σ = 30099600. Its totient is φ = 4013264.

The previous prime is 12039803. The next prime is 12039821. The reversal of 12039816 is 61893021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250806 + ... + 250853.

It is an arithmetic number, because the mean of its divisors is an integer number (1881225).

Almost surely, 2^12039816 is an apocalyptic number.

It is an amenable number.

12039816 is an abundant number, since it is smaller than the sum of its proper divisors (18059784).

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

12039816 is a wasteful number, since it uses less digits than its factorization.

12039816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501668 (or 501664 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12039816 is about 3469.8438005190. The cubic root of 12039816 is about 229.1957797651.

The spelling of 12039816 in words is "twelve million, thirty-nine thousand, eight hundred sixteen".