3999984600 has 96 divisors (see below), whose sum is σ = 12702468240. Its totient is φ = 1040640000.

The previous prime is 3999984563. The next prime is 3999984607. The reversal of 3999984600 is 64899993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999984607) 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, 56701 + ... + 105900.

Almost surely, 2^3999984600 is an apocalyptic number.

3999984600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3999984600 is an abundant number, since it is smaller than the sum of its proper divisors (8702483640).

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

3999984600 is a wasteful number, since it uses less digits than its factorization.

3999984600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162661 (or 162652 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 57.

The square root of 3999984600 is about 63245.4314555605. The cubic root of 3999984600 is about 1587.3990148009.

The spelling of 3999984600 in words is "three billion, nine hundred ninety-nine million, nine hundred eighty-four thousand, six hundred".