12039885 has 48 divisors (see below), whose sum is σ = 24530688. Its totient is φ = 5385600.

The previous prime is 12039883. The next prime is 12039889. The reversal of 12039885 is 58893021.

It is not a de Polignac number, because 12039885 - 2¹ = 12039883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5500 + ... + 7370.

It is an arithmetic number, because the mean of its divisors is an integer number (511056).

Almost surely, 2^12039885 is an apocalyptic number.

12039885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12039885 is an abundant number, since it is smaller than the sum of its proper divisors (12490803).

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

12039885 is a wasteful number, since it uses less digits than its factorization.

12039885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 12039885 is about 3469.8537433154. The cubic root of 12039885 is about 229.1962176034.

The spelling of 12039885 in words is "twelve million, thirty-nine thousand, eight hundred eighty-five".