381677168 has 40 divisors (see below), whose sum is σ = 793141200. Its totient is φ = 177375744.

The previous prime is 381677167. The next prime is 381677189. The reversal of 381677168 is 861776183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381677161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268 + ... + 27956.

It is an arithmetic number, because the mean of its divisors is an integer number (19828530).

Almost surely, 2^381677168 is an apocalyptic number.

381677168 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381677168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396570600).

381677168 is an abundant number, since it is smaller than the sum of its proper divisors (411464032).

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

381677168 is a wasteful number, since it uses less digits than its factorization.

381677168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23769 (or 23763 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The square root of 381677168 is about 19536.5597790399. The cubic root of 381677168 is about 725.3796936228.

The spelling of 381677168 in words is "three hundred eighty-one million, six hundred seventy-seven thousand, one hundred sixty-eight".