12649950 has 36 divisors (see below), whose sum is σ = 33987408. Its totient is φ = 3373200.

The previous prime is 12649943. The next prime is 12649957. The reversal of 12649950 is 5994621.

12649950 is a `hidden beast` number, since 1 + 2 + 649 + 9 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12649943) and next prime (12649957).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13606 + ... + 14505.

Almost surely, 2^12649950 is an apocalyptic number.

12649950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12649950 is an abundant number, since it is smaller than the sum of its proper divisors (21337458).

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

12649950 is a wasteful number, since it uses less digits than its factorization.

12649950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28129 (or 28121 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 12649950 is about 3556.6768197293. The cubic root of 12649950 is about 233.0037637465.

The spelling of 12649950 in words is "twelve million, six hundred forty-nine thousand, nine hundred fifty".