3994422 has 16 divisors (see below), whose sum is σ = 8458992. Its totient is φ = 1253120.

The previous prime is 3994421. The next prime is 3994429. The reversal of 3994422 is 2244993.

It is a super-2 number, since 2×3994422² = 31910814228168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19479 + ... + 19682.

It is an arithmetic number, because the mean of its divisors is an integer number (528687).

Almost surely, 2^3994422 is an apocalyptic number.

3994422 is an abundant number, since it is smaller than the sum of its proper divisors (4464570).

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

3994422 is a wasteful number, since it uses less digits than its factorization.

3994422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39183.

The product of its digits is 15552, while the sum is 33.

The square root of 3994422 is about 1998.6050135032. The cubic root of 3994422 is about 158.6662831790. Note that the first 3 decimals are identical.

The spelling of 3994422 in words is "three million, nine hundred ninety-four thousand, four hundred twenty-two".