3941920 has 48 divisors (see below), whose sum is σ = 9471168. Its totient is φ = 1550080.

The previous prime is 3941891. The next prime is 3941923. The reversal of 3941920 is 291493.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3941923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11187 + ... + 11533.

It is an arithmetic number, because the mean of its divisors is an integer number (197316).

Almost surely, 2^3941920 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 3941920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4735584).

3941920 is an abundant number, since it is smaller than the sum of its proper divisors (5529248).

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

3941920 is a wasteful number, since it uses less digits than its factorization.

3941920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3941920 is about 1985.4269062345. The cubic root of 3941920 is about 157.9680542154.

The spelling of 3941920 in words is "three million, nine hundred forty-one thousand, nine hundred twenty".