3999360 has 64 divisors (see below), whose sum is σ = 12754080. Its totient is φ = 1065984.

The previous prime is 3999337. The next prime is 3999379. The reversal of 3999360 is 639993.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 2961.

Almost surely, 2^3999360 is an apocalyptic number.

3999360 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 3999360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6377040).

3999360 is an abundant number, since it is smaller than the sum of its proper divisors (8754720).

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

3999360 is a wasteful number, since it uses less digits than its factorization.

3999360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 3999360 is about 1999.8399935995. The cubic root of 3999360 is about 158.7316386063.

It can be divided in two parts, 39 and 99360, that added together give a palindrome (99399).

The spelling of 3999360 in words is "three million, nine hundred ninety-nine thousand, three hundred sixty".