3994012 has 24 divisors (see below), whose sum is σ = 7805952. Its totient is φ = 1772400.

The previous prime is 3994007. The next prime is 3994021. The reversal of 3994012 is 2104993.

It is a happy number.

It is a super-2 number, since 2×3994012² = 31904263712288, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837 + ... + 2947.

It is an arithmetic number, because the mean of its divisors is an integer number (325248).

Almost surely, 2^3994012 is an apocalyptic number.

It is an amenable number.

3994012 is a deficient number, since it is larger than the sum of its proper divisors (3811940).

3994012 is a wasteful number, since it uses less digits than its factorization.

3994012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3994012 is about 1998.5024393280. The cubic root of 3994012 is about 158.6608543250.

The spelling of 3994012 in words is "three million, nine hundred ninety-four thousand, twelve".