381108868 has 36 divisors (see below), whose sum is σ = 781803792. Its totient is φ = 162074640.

The previous prime is 381108851. The next prime is 381108883. The reversal of 381108868 is 868801183.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18255 + ... + 33097.

It is an arithmetic number, because the mean of its divisors is an integer number (21716772).

Almost surely, 2^381108868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381108868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390901896).

381108868 is an abundant number, since it is smaller than the sum of its proper divisors (400694924).

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

381108868 is a wasteful number, since it uses less digits than its factorization.

381108868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992 (or 14983 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 381108868 is about 19522.0098350554. The cubic root of 381108868 is about 725.0194956311.

The spelling of 381108868 in words is "three hundred eighty-one million, one hundred eight thousand, eight hundred sixty-eight".