3940459 has 4 divisors (see below), whose sum is σ = 3976720. Its totient is φ = 3904200.

The previous prime is 3940457. The next prime is 3940483. The reversal of 3940459 is 9540493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3940459 - 2¹ = 3940457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3940451) 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, 17967 + ... + 18184.

It is an arithmetic number, because the mean of its divisors is an integer number (994180).

Almost surely, 2^3940459 is an apocalyptic number.

3940459 is a deficient number, since it is larger than the sum of its proper divisors (36261).

3940459 is a wasteful number, since it uses less digits than its factorization.

3940459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36260.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3940459 is about 1985.0589411904. The cubic root of 3940459 is about 157.9485358212.

Adding to 3940459 its sum of digits (34), we get a palindrome (3940493).

The spelling of 3940459 in words is "three million, nine hundred forty thousand, four hundred fifty-nine".