12039408 has 120 divisors (see below), whose sum is σ = 36939600. Its totient is φ = 3749760.

The previous prime is 12039403. The next prime is 12039409. The reversal of 12039408 is 80493021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388353 + ... + 388383.

It is an arithmetic number, because the mean of its divisors is an integer number (307830).

Almost surely, 2^12039408 is an apocalyptic number.

12039408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12039408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18469800).

12039408 is an abundant number, since it is smaller than the sum of its proper divisors (24900192).

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

12039408 is a wasteful number, since it uses less digits than its factorization.

12039408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12039408 is about 3469.7850077490. The cubic root of 12039408 is about 229.1931907738.

The spelling of 12039408 in words is "twelve million, thirty-nine thousand, four hundred eight".