3281939780 has 24 divisors (see below), whose sum is σ = 7876655808. Its totient is φ = 1125236448.

The previous prime is 3281939747. The next prime is 3281939789. The reversal of 3281939780 is 879391823.

It is a happy number.

3281939780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3281939780² = 21542257439092896800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3281939789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11721074 + ... + 11721353.

It is an arithmetic number, because the mean of its divisors is an integer number (328193992).

Almost surely, 2^3281939780 is an apocalyptic number.

It is an amenable number.

3281939780 is an abundant number, since it is smaller than the sum of its proper divisors (4594716028).

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

3281939780 is a wasteful number, since it uses less digits than its factorization.

3281939780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23442443 (or 23442441 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 3281939780 is about 57288.2167640083. The cubic root of 3281939780 is about 1486.0846078408.

The spelling of 3281939780 in words is "three billion, two hundred eighty-one million, nine hundred thirty-nine thousand, seven hundred eighty".