3993140 has 12 divisors (see below), whose sum is σ = 8385636. Its totient is φ = 1597248.

The previous prime is 3993127. The next prime is 3993161. The reversal of 3993140 is 413993.

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 1993744 = 1414^2 + 1412^2 .

It is a congruent number.

It is an unprimeable number.

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, 99809 + ... + 99848.

It is an arithmetic number, because the mean of its divisors is an integer number (698803).

Almost surely, 2^3993140 is an apocalyptic number.

It is an amenable number.

3993140 is an abundant number, since it is smaller than the sum of its proper divisors (4392496).

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

3993140 is a wasteful number, since it uses less digits than its factorization.

3993140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199666 (or 199664 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3993140 is about 1998.2842640625. The cubic root of 3993140 is about 158.6493068438.

The spelling of 3993140 in words is "three million, nine hundred ninety-three thousand, one hundred forty".