3944994 has 8 divisors (see below), whose sum is σ = 7890000. Its totient is φ = 1314996.

The previous prime is 3944987. The next prime is 3944999. The reversal of 3944994 is 4994493.

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

3944994 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3944999) 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, 328744 + ... + 328755.

It is an arithmetic number, because the mean of its divisors is an integer number (986250).

Almost surely, 2^3944994 is an apocalyptic number.

3944994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3944994 is a wasteful number, since it uses less digits than its factorization.

3944994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657504.

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

The square root of 3944994 is about 1986.2008961835. The cubic root of 3944994 is about 158.0091059218.

The spelling of 3944994 in words is "three million, nine hundred forty-four thousand, nine hundred ninety-four".