3994560 has 168 divisors, whose sum is σ = 14660880. Its totient is φ = 995328.

The previous prime is 3994559. The next prime is 3994561. The reversal of 3994560 is 654993.

3994560 is a `hidden beast` number, since 3 + 9 + 94 + 560 = 666.

It is an interprime number because it is at equal distance from previous prime (3994559) and next prime (3994561).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54684 + ... + 54756.

Almost surely, 2^3994560 is an apocalyptic number.

3994560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3994560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7330440).

3994560 is an abundant number, since it is smaller than the sum of its proper divisors (10666320).

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

3994560 is a wasteful number, since it uses less digits than its factorization.

3994560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3994560 is about 1998.6395372853. The cubic root of 3994560 is about 158.6681103683.

It can be divided in two parts, 3994 and 560, that added together give a palindrome (4554).

The spelling of 3994560 in words is "three million, nine hundred ninety-four thousand, five hundred sixty".