381707180 has 12 divisors (see below), whose sum is σ = 801585120. Its totient is φ = 152682864.

The previous prime is 381707177. The next prime is 381707189. The reversal of 381707180 is 81707183.

It is a self number, because there is not a number n which added to its sum of digits gives 381707180.

It is not an unprimeable number, because it can be changed into a prime (381707189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9542660 + ... + 9542699.

It is an arithmetic number, because the mean of its divisors is an integer number (66798760).

Almost surely, 2^381707180 is an apocalyptic number.

It is an amenable number.

381707180 is an abundant number, since it is smaller than the sum of its proper divisors (419877940).

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

381707180 is a wasteful number, since it uses less digits than its factorization.

381707180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085368 (or 19085366 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 381707180 is about 19537.3278623255. The cubic root of 381707180 is about 725.3987057851.

The spelling of 381707180 in words is "three hundred eighty-one million, seven hundred seven thousand, one hundred eighty".