3995920 has 40 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 1584000.

The previous prime is 3995903. The next prime is 3995921. The reversal of 3995920 is 295993.

3995920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3995920.

It is not an unprimeable number, because it can be changed into a prime (3995921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15795 + ... + 16045.

It is an arithmetic number, because the mean of its divisors is an integer number (234360).

Almost surely, 2^3995920 is an apocalyptic number.

It is an amenable number.

3995920 is an abundant number, since it is smaller than the sum of its proper divisors (5378480).

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

3995920 is a wasteful number, since it uses less digits than its factorization.

3995920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 3995920 is about 1998.9797397673. The cubic root of 3995920 is about 158.6861152003.

It can be divided in two parts, 39 and 95920, that added together give a palindrome (95959).

The spelling of 3995920 in words is "three million, nine hundred ninety-five thousand, nine hundred twenty".