12049966 has 4 divisors (see below), whose sum is σ = 18074952. Its totient is φ = 6024982.

The previous prime is 12049963. The next prime is 12049967. The reversal of 12049966 is 66994021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12049963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3012490 + ... + 3012493.

It is an arithmetic number, because the mean of its divisors is an integer number (4518738).

Almost surely, 2^12049966 is an apocalyptic number.

12049966 is a deficient number, since it is larger than the sum of its proper divisors (6024986).

12049966 is an equidigital number, since it uses as much as digits as its factorization.

12049966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024985.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 12049966 is about 3471.3060942533. The cubic root of 12049966 is about 229.2601684496.

It can be divided in two parts, 120 and 49966, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 12049966 in words is "twelve million, forty-nine thousand, nine hundred sixty-six".