12369840 has 160 divisors (see below), whose sum is σ = 45235200. Its totient is φ = 2737152.

The previous prime is 12369839. The next prime is 12369859. The reversal of 12369840 is 4896321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62061 + ... + 62259.

It is an arithmetic number, because the mean of its divisors is an integer number (282720).

Almost surely, 2^12369840 is an apocalyptic number.

12369840 is a gapful number since it is divisible by the number (10) 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 12369840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22617600).

12369840 is an abundant number, since it is smaller than the sum of its proper divisors (32865360).

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

12369840 is a wasteful number, since it uses less digits than its factorization.

12369840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12369840 is about 3517.0783329349. The cubic root of 12369840 is about 231.2710971743.

The spelling of 12369840 in words is "twelve million, three hundred sixty-nine thousand, eight hundred forty".