3938813180 has 24 divisors (see below), whose sum is σ = 8281617120. Its totient is φ = 1573599680.

The previous prime is 3938813161. The next prime is 3938813189. The reversal of 3938813180 is 813188393.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938813189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103520 + ... + 136359.

It is an arithmetic number, because the mean of its divisors is an integer number (345067380).

Almost surely, 2^3938813180 is an apocalyptic number.

It is an amenable number.

3938813180 is an abundant number, since it is smaller than the sum of its proper divisors (4342803940).

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

3938813180 is a wasteful number, since it uses less digits than its factorization.

3938813180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240709 (or 240707 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 3938813180 is about 62759.9647864783. The cubic root of 3938813180 is about 1579.2654252379.

The spelling of 3938813180 in words is "three billion, nine hundred thirty-eight million, eight hundred thirteen thousand, one hundred eighty".