3981412736 has 32 divisors (see below), whose sum is σ = 9064825680. Its totient is φ = 1706319360.

The previous prime is 3981412711. The next prime is 3981412751. The reversal of 3981412736 is 6372141893.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220875 + ... + 2222666.

Almost surely, 2^3981412736 is an apocalyptic number.

It is an amenable number.

3981412736 is an abundant number, since it is smaller than the sum of its proper divisors (5083412944).

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

3981412736 is an equidigital number, since it uses as much as digits as its factorization.

3981412736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443562 (or 4443550 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 3981412736 is about 63098.4368744583. The cubic root of 3981412736 is about 1584.9384467268.

The spelling of 3981412736 in words is "three billion, nine hundred eighty-one million, four hundred twelve thousand, seven hundred thirty-six".