3993448032 has 72 divisors (see below), whose sum is σ = 12978712656. Its totient is φ = 1140984576.

The previous prime is 3993448027. The next prime is 3993448049. The reversal of 3993448032 is 2308443993.

It is a tau number, because it is divible by the number of its divisors (72).

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, 988423 + ... + 992454.

It is an arithmetic number, because the mean of its divisors is an integer number (180259898).

Almost surely, 2^3993448032 is an apocalyptic number.

3993448032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3993448032 is an abundant number, since it is smaller than the sum of its proper divisors (8985264624).

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

3993448032 is a wasteful number, since it uses less digits than its factorization.

3993448032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980900 (or 1980889 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 3993448032 is about 63193.7341197686. The cubic root of 3993448032 is about 1586.5338615708.

The spelling of 3993448032 in words is "three billion, nine hundred ninety-three million, four hundred forty-eight thousand, thirty-two".