12949988 has 24 divisors (see below), whose sum is σ = 24168312. Its totient is φ = 6050304.

The previous prime is 12949987. The next prime is 12949997. The reversal of 12949988 is 88994921.

It is a happy number.

12949988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 262144 + 12687844 = 512^2 + 3562^2 .

It is not an unprimeable number, because it can be changed into a prime (12949987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10070 + ... + 11282.

It is an arithmetic number, because the mean of its divisors is an integer number (1007013).

Almost surely, 2^12949988 is an apocalyptic number.

It is an amenable number.

12949988 is a deficient number, since it is larger than the sum of its proper divisors (11218324).

12949988 is a wasteful number, since it uses less digits than its factorization.

12949988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its digits is 373248, while the sum is 50.

The square root of 12949988 is about 3598.6091757789. The cubic root of 12949988 is about 234.8315557657.

The spelling of 12949988 in words is "twelve million, nine hundred forty-nine thousand, nine hundred eighty-eight".