12949938 has 12 divisors (see below), whose sum is σ = 28058238. Its totient is φ = 4316640.

The previous prime is 12949931. The next prime is 12949939. The reversal of 12949938 is 83994921.

12949938 is a `hidden beast` number, since 129 + 499 + 38 = 666.

12949938 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 only one way, i.e., 12510369 + 439569 = 3537^2 + 663^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12949893 and 12949902.

It is not an unprimeable number, because it can be changed into a prime (12949931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 359703 + ... + 359738.

Almost surely, 2^12949938 is an apocalyptic number.

12949938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12949938 is an abundant number, since it is smaller than the sum of its proper divisors (15108300).

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

12949938 is a wasteful number, since it uses less digits than its factorization.

12949938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719449 (or 719446 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 12949938 is about 3598.6022286438. The cubic root of 12949938 is about 234.8312535366.

The spelling of 12949938 in words is "twelve million, nine hundred forty-nine thousand, nine hundred thirty-eight".