3949946 has 32 divisors (see below), whose sum is σ = 7959168. Its totient is φ = 1419840.

The previous prime is 3949919. The next prime is 3949961. The reversal of 3949946 is 6499493.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3949897 and 3949906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (248724).

Almost surely, 2^3949946 is an apocalyptic number.

3949946 is an abundant number, since it is smaller than the sum of its proper divisors (4009222).

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

3949946 is a wasteful number, since it uses less digits than its factorization.

3949946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its digits is 209952, while the sum is 44.

The square root of 3949946 is about 1987.4471062144. The cubic root of 3949946 is about 158.0751925388.

It can be divided in two parts, 3 and 949946, that added together give a palindrome (949949).

The spelling of 3949946 in words is "three million, nine hundred forty-nine thousand, nine hundred forty-six".