3940026 has 8 divisors (see below), whose sum is σ = 7880064. Its totient is φ = 1313340.

The previous prime is 3940021. The next prime is 3940033. The reversal of 3940026 is 6200493.

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

3940026 is an admirable number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3939978 and 3940005.

It is not an unprimeable number, because it can be changed into a prime (3940021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 328330 + ... + 328341.

It is an arithmetic number, because the mean of its divisors is an integer number (985008).

Almost surely, 2^3940026 is an apocalyptic number.

3940026 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.

3940026 is a wasteful number, since it uses less digits than its factorization.

3940026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656676.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3940026 is about 1984.9498734225. The cubic root of 3940026 is about 157.9427501820.

The spelling of 3940026 in words is "three million, nine hundred forty thousand, twenty-six".