3940480 has 64 divisors (see below), whose sum is σ = 9694080. Its totient is φ = 1530880.

The previous prime is 3940457. The next prime is 3940483. The reversal of 3940480 is 840493.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (3940483) 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, 30015 + ... + 30145.

It is an arithmetic number, because the mean of its divisors is an integer number (151470).

Almost surely, 2^3940480 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 3940480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4847040).

3940480 is an abundant number, since it is smaller than the sum of its proper divisors (5753600).

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

3940480 is a wasteful number, since it uses less digits than its factorization.

3940480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3940480 is about 1985.0642306988. The cubic root of 3940480 is about 157.9488164072.

The spelling of 3940480 in words is "three million, nine hundred forty thousand, four hundred eighty".