3940582 has 4 divisors (see below), whose sum is σ = 5910876. Its totient is φ = 1970290.

The previous prime is 3940579. The next prime is 3940589. The reversal of 3940582 is 2850493.

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

It is a Smith number, since the sum of its digits (31) 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 (3940589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985144 + ... + 985147.

It is an arithmetic number, because the mean of its divisors is an integer number (1477719).

Almost surely, 2^3940582 is an apocalyptic number.

3940582 is a deficient number, since it is larger than the sum of its proper divisors (1970294).

3940582 is a wasteful number, since it uses less digits than its factorization.

3940582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970293.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3940582 is about 1985.0899223965. The cubic root of 3940582 is about 157.9501792395.

The spelling of 3940582 in words is "three million, nine hundred forty thousand, five hundred eighty-two".