12936740 has 12 divisors (see below), whose sum is σ = 27167196. Its totient is φ = 5174688.

The previous prime is 12936733. The next prime is 12936743. The reversal of 12936740 is 4763921.

It can be written as a sum of positive squares in 2 ways, for example, as 6270016 + 6666724 = 2504^2 + 2582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12936697 and 12936706.

It is not an unprimeable number, because it can be changed into a prime (12936743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323399 + ... + 323438.

It is an arithmetic number, because the mean of its divisors is an integer number (2263933).

Almost surely, 2^12936740 is an apocalyptic number.

12936740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12936740 is an abundant number, since it is smaller than the sum of its proper divisors (14230456).

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

12936740 is a wasteful number, since it uses less digits than its factorization.

12936740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646846 (or 646844 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12936740 is about 3596.7679936298. The cubic root of 12936740 is about 234.7514499017.

The spelling of 12936740 in words is "twelve million, nine hundred thirty-six thousand, seven hundred forty".