3985903200 has 72 divisors (see below), whose sum is σ = 12974122728. Its totient is φ = 1062906880.

The previous prime is 3985903193. The next prime is 3985903223. The reversal of 3985903200 is 23095893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 827997 + ... + 832796.

It is an arithmetic number, because the mean of its divisors is an integer number (180196149).

Almost surely, 2^3985903200 is an apocalyptic number.

3985903200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3985903200 is an abundant number, since it is smaller than the sum of its proper divisors (8988219528).

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

3985903200 is a wasteful number, since it uses less digits than its factorization.

3985903200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660816 (or 1660803 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 3985903200 is about 63134.0098520599. The cubic root of 3985903200 is about 1585.5340841291.

The spelling of 3985903200 in words is "three billion, nine hundred eighty-five million, nine hundred three thousand, two hundred".