380187638 has 4 divisors (see below), whose sum is σ = 570281460. Its totient is φ = 190093818.

The previous prime is 380187637. The next prime is 380187659. The reversal of 380187638 is 836781083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836781083 = 1301 ⋅643183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380187637) by changing a digit.

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 as a sum of consecutive naturals, namely, 95046908 + ... + 95046911.

It is an arithmetic number, because the mean of its divisors is an integer number (142570365).

Almost surely, 2^380187638 is an apocalyptic number.

380187638 is a deficient number, since it is larger than the sum of its proper divisors (190093822).

380187638 is a wasteful number, since it uses less digits than its factorization.

380187638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190093821.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 380187638 is about 19498.4009087925. The cubic root of 380187638 is about 724.4348432697.

The spelling of 380187638 in words is "three hundred eighty million, one hundred eighty-seven thousand, six hundred thirty-eight".