3981036980 has 24 divisors (see below), whose sum is σ = 8361964800. Its totient is φ = 1592074400.

The previous prime is 3981036979. The next prime is 3981036991. The reversal of 3981036980 is 896301893.

It is a super-2 number, since 2×3981036980² = 31697310872255040800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88421 + ... + 125619.

It is an arithmetic number, because the mean of its divisors is an integer number (348415200).

Almost surely, 2^3981036980 is an apocalyptic number.

It is an amenable number.

3981036980 is an abundant number, since it is smaller than the sum of its proper divisors (4380927820).

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

3981036980 is a wasteful number, since it uses less digits than its factorization.

3981036980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42559 (or 42557 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 3981036980 is about 63095.4592660993. The cubic root of 3981036980 is about 1584.8885842862. Note that the first 3 decimals are identical.

The spelling of 3981036980 in words is "three billion, nine hundred eighty-one million, thirty-six thousand, nine hundred eighty".