381133678 has 4 divisors (see below), whose sum is σ = 571700520. Its totient is φ = 190566838.

The previous prime is 381133619. The next prime is 381133699. The reversal of 381133678 is 876331183.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 381133678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95283418 + ... + 95283421.

It is an arithmetic number, because the mean of its divisors is an integer number (142925130).

Almost surely, 2^381133678 is an apocalyptic number.

381133678 is a deficient number, since it is larger than the sum of its proper divisors (190566842).

381133678 is a wasteful number, since it uses less digits than its factorization.

381133678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190566841.

The product of its digits is 72576, while the sum is 40.

The square root of 381133678 is about 19522.6452613369. The cubic root of 381133678 is about 725.0352280940.

The spelling of 381133678 in words is "three hundred eighty-one million, one hundred thirty-three thousand, six hundred seventy-eight".