3940284 has 12 divisors (see below), whose sum is σ = 9194024. Its totient is φ = 1313424.

The previous prime is 3940273. The next prime is 3940289. The reversal of 3940284 is 4820493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940289) 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, 164167 + ... + 164190.

Almost surely, 2^3940284 is an apocalyptic number.

It is an amenable number.

3940284 is an abundant number, since it is smaller than the sum of its proper divisors (5253740).

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

3940284 is a wasteful number, since it uses less digits than its factorization.

3940284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328364 (or 328362 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 3940284 is about 1985.0148614053. The cubic root of 3940284 is about 157.9461975654.

It can be divided in two parts, 3940 and 284, that added together give a palindrome (4224).

The spelling of 3940284 in words is "three million, nine hundred forty thousand, two hundred eighty-four".