3943444 has 24 divisors (see below), whose sum is σ = 7162848. Its totient is φ = 1898400.

The previous prime is 3943427. The next prime is 3943451. The reversal of 3943444 is 4443493.

3943444 = T₆₁ + T₆₂ + ... + T₂₈₇.

It is a super-2 number, since 2×3943444² = 31101501162272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17259 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (298452).

Almost surely, 2^3943444 is an apocalyptic number.

It is an amenable number.

3943444 is a deficient number, since it is larger than the sum of its proper divisors (3219404).

3943444 is a wasteful number, since it uses less digits than its factorization.

3943444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 3943444 is about 1985.8106656980. The cubic root of 3943444 is about 157.9884091267.

The spelling of 3943444 in words is "three million, nine hundred forty-three thousand, four hundred forty-four".