3944386 has 8 divisors (see below), whose sum is σ = 6017040. Its totient is φ = 1938708.

The previous prime is 3944371. The next prime is 3944387. The reversal of 3944386 is 6834493.

3944386 = 229² + 230² + ... + 287².

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

It is not an unprimeable number, because it can be changed into a prime (3944387) 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, 16596 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (752130).

Almost surely, 2^3944386 is an apocalyptic number.

3944386 is a deficient number, since it is larger than the sum of its proper divisors (2072654).

3944386 is a wasteful number, since it uses less digits than its factorization.

3944386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33488.

The product of its digits is 62208, while the sum is 37.

The square root of 3944386 is about 1986.0478342678. The cubic root of 3944386 is about 158.0009880833. Note that the first 3 decimals are identical.

The spelling of 3944386 in words is "three million, nine hundred forty-four thousand, three hundred eighty-six".