12944740 has 36 divisors (see below), whose sum is σ = 27869436. Its totient is φ = 5050432.

The previous prime is 12944717. The next prime is 12944761. The reversal of 12944740 is 4744921.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 3896676 = 3008^2 + 1974^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44034 + ... + 44326.

It is an arithmetic number, because the mean of its divisors is an integer number (774151).

Almost surely, 2^12944740 is an apocalyptic number.

12944740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12944740 is an abundant number, since it is smaller than the sum of its proper divisors (14924696).

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

12944740 is a wasteful number, since it uses less digits than its factorization.

12944740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12944740 is about 3597.8799312929. The cubic root of 12944740 is about 234.7998295454.

The spelling of 12944740 in words is "twelve million, nine hundred forty-four thousand, seven hundred forty".