3944949 has 16 divisors (see below), whose sum is σ = 5493312. Its totient is φ = 2515968.

The previous prime is 3944933. The next prime is 3944953. The reversal of 3944949 is 9494493.

It is not a de Polignac number, because 3944949 - 2⁴ = 3944933 is a prime.

It is a super-2 number, since 2×3944949² = 31125245225202, which contains 22 as substring.

3944949 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3944949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944909) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6549 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (343332).

Almost surely, 2^3944949 is an apocalyptic number.

It is an amenable number.

3944949 is a deficient number, since it is larger than the sum of its proper divisors (1548363).

3944949 is a wasteful number, since it uses less digits than its factorization.

3944949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its digits is 139968, while the sum is 42.

The square root of 3944949 is about 1986.1895679919. The cubic root of 3944949 is about 158.0085051235.

The spelling of 3944949 in words is "three million, nine hundred forty-four thousand, nine hundred forty-nine".