3949442 has 8 divisors (see below), whose sum is σ = 6770496. Its totient is φ = 1692612.

The previous prime is 3949441. The next prime is 3949453. The reversal of 3949442 is 2449493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3949442² = 31196184222728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3949441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141038 + ... + 141065.

It is an arithmetic number, because the mean of its divisors is an integer number (846312).

Almost surely, 2^3949442 is an apocalyptic number.

3949442 is a deficient number, since it is larger than the sum of its proper divisors (2821054).

3949442 is a wasteful number, since it uses less digits than its factorization.

3949442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282112.

The product of its digits is 31104, while the sum is 35.

The square root of 3949442 is about 1987.3203063422. The cubic root of 3949442 is about 158.0684689629.

The spelling of 3949442 in words is "three million, nine hundred forty-nine thousand, four hundred forty-two".