3994158 has 32 divisors (see below), whose sum is σ = 9285120. Its totient is φ = 1121760.

The previous prime is 3994147. The next prime is 3994171. The reversal of 3994158 is 8514993.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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, 1783 + ... + 3341.

It is an arithmetic number, because the mean of its divisors is an integer number (290160).

Almost surely, 2^3994158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3994158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4642560).

3994158 is an abundant number, since it is smaller than the sum of its proper divisors (5290962).

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

3994158 is a wasteful number, since it uses less digits than its factorization.

3994158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its digits is 38880, while the sum is 39.

The square root of 3994158 is about 1998.5389663452. The cubic root of 3994158 is about 158.6627875692.

The spelling of 3994158 in words is "three million, nine hundred ninety-four thousand, one hundred fifty-eight".