3968812320 has 96 divisors (see below), whose sum is σ = 13638300480. Its totient is φ = 962135040.

The previous prime is 3968812319. The next prime is 3968812339. The reversal of 3968812320 is 232188693.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370555 + ... + 381114.

It is an arithmetic number, because the mean of its divisors is an integer number (142065630).

Almost surely, 2^3968812320 is an apocalyptic number.

3968812320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3968812320 is an abundant number, since it is smaller than the sum of its proper divisors (9669488160).

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

3968812320 is a wasteful number, since it uses less digits than its factorization.

3968812320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751698 (or 751690 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 3968812320 is about 62998.5104585815. The cubic root of 3968812320 is about 1583.2646699186.

The spelling of 3968812320 in words is "three billion, nine hundred sixty-eight million, eight hundred twelve thousand, three hundred twenty".