12936240 has 160 divisors (see below), whose sum is σ = 45800640. Its totient is φ = 3354624.

The previous prime is 12936227. The next prime is 12936247. The reversal of 12936240 is 4263921.

12936240 = T₂₁₉ + T₂₂₀ + ... + T₄₄₄.

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 (12936247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114424 + ... + 114536.

It is an arithmetic number, because the mean of its divisors is an integer number (286254).

Almost surely, 2^12936240 is an apocalyptic number.

12936240 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 12936240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22900320).

12936240 is an abundant number, since it is smaller than the sum of its proper divisors (32864400).

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

12936240 is a wasteful number, since it uses less digits than its factorization.

12936240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 12936240 is about 3596.6984861120. The cubic root of 12936240 is about 234.7484255118.

The spelling of 12936240 in words is "twelve million, nine hundred thirty-six thousand, two hundred forty".