381868974 has 48 divisors (see below), whose sum is σ = 858783744. Its totient is φ = 122504400.

The previous prime is 381868969. The next prime is 381868999. The reversal of 381868974 is 479868183.

It is a self number, because there is not a number n which added to its sum of digits gives 381868974.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 104787 + ... + 108369.

It is an arithmetic number, because the mean of its divisors is an integer number (17891328).

Almost surely, 2^381868974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381868974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429391872).

381868974 is an abundant number, since it is smaller than the sum of its proper divisors (476914770).

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

381868974 is a wasteful number, since it uses less digits than its factorization.

381868974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3810 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 381868974 is about 19541.4680615352. The cubic root of 381868974 is about 725.5011827498.

The spelling of 381868974 in words is "three hundred eighty-one million, eight hundred sixty-eight thousand, nine hundred seventy-four".