3984380 has 48 divisors (see below), whose sum is σ = 8848224. Its totient is φ = 1505280.

The previous prime is 3984347. The next prime is 3984389. The reversal of 3984380 is 834893.

It is a self number, because there is not a number n which added to its sum of digits gives 3984380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35204 + ... + 35316.

It is an arithmetic number, because the mean of its divisors is an integer number (184338).

Almost surely, 2^3984380 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 3984380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4424112).

3984380 is an abundant number, since it is smaller than the sum of its proper divisors (4863844).

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

3984380 is a wasteful number, since it uses less digits than its factorization.

3984380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3984380 is about 1996.0911802821. The cubic root of 3984380 is about 158.5332089491.

The spelling of 3984380 in words is "three million, nine hundred eighty-four thousand, three hundred eighty".