381873682 has 8 divisors (see below), whose sum is σ = 592562700. Its totient is φ = 184352784.

The previous prime is 381873677. The next prime is 381873683. The reversal of 381873682 is 286378183.

It can be written as a sum of positive squares in 2 ways, for example, as 354531241 + 27342441 = 18829^2 + 5229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (381873683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3291957 + ... + 3292072.

Almost surely, 2^381873682 is an apocalyptic number.

381873682 is a deficient number, since it is larger than the sum of its proper divisors (210689018).

381873682 is a wasteful number, since it uses less digits than its factorization.

381873682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584060.

The product of its digits is 387072, while the sum is 46.

The square root of 381873682 is about 19541.5885229426. The cubic root of 381873682 is about 725.5041642659.

The spelling of 381873682 in words is "three hundred eighty-one million, eight hundred seventy-three thousand, six hundred eighty-two".