3944194 has 4 divisors (see below), whose sum is σ = 5916294. Its totient is φ = 1972096.

The previous prime is 3944189. The next prime is 3944219. The reversal of 3944194 is 4914493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4914493 = 379 ⋅12967.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 3969 = 1985^2 + 63^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986047 + ... + 986050.

Almost surely, 2^3944194 is an apocalyptic number.

3944194 is a deficient number, since it is larger than the sum of its proper divisors (1972100).

3944194 is a wasteful number, since it uses less digits than its factorization.

3944194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972099.

The product of its digits is 15552, while the sum is 34.

The square root of 3944194 is about 1985.9994964753. Note that the first 3 decimals coincide. The cubic root of 3944194 is about 157.9984243821.

Subtracting 3944194 from its reverse (4914493), we obtain a cube (970299 = 99³).

The spelling of 3944194 in words is "three million, nine hundred forty-four thousand, one hundred ninety-four".