3864560 has 80 divisors (see below), whose sum is σ = 10523136. Its totient is φ = 1292544.

The previous prime is 3864557. The next prime is 3864583. The reversal of 3864560 is 654683.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37469 + ... + 37571.

Almost surely, 2^3864560 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 3864560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5261568).

3864560 is an abundant number, since it is smaller than the sum of its proper divisors (6658576).

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

3864560 is a wasteful number, since it uses less digits than its factorization.

3864560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3864560 is about 1965.8484173506. The cubic root of 3864560 is about 156.9278476255.

The spelling of 3864560 in words is "three million, eight hundred sixty-four thousand, five hundred sixty".