3958240 has 96 divisors (see below), whose sum is σ = 11049696. Its totient is φ = 1320960.

The previous prime is 3958219. The next prime is 3958243. The reversal of 3958240 is 428593.

3958240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958243) 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 15 ways as a sum of consecutive naturals, for example, 22794 + ... + 22966.

It is an arithmetic number, because the mean of its divisors is an integer number (115101).

Almost surely, 2^3958240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3958240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5524848).

3958240 is an abundant number, since it is smaller than the sum of its proper divisors (7091456).

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

3958240 is a wasteful number, since it uses less digits than its factorization.

3958240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 204 counting only the distinct ones).

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

The square root of 3958240 is about 1989.5326084284. The cubic root of 3958240 is about 158.1857559964.

The spelling of 3958240 in words is "three million, nine hundred fifty-eight thousand, two hundred forty".