381300638 has 8 divisors (see below), whose sum is σ = 572907600. Its totient is φ = 190331440.

The previous prime is 381300637. The next prime is 381300727. The reversal of 381300638 is 836003183.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381300631) 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, 157943 + ... + 160338.

It is an arithmetic number, because the mean of its divisors is an integer number (71613450).

Almost surely, 2^381300638 is an apocalyptic number.

381300638 is a deficient number, since it is larger than the sum of its proper divisors (191606962).

381300638 is a wasteful number, since it uses less digits than its factorization.

381300638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318882.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 381300638 is about 19526.9208530173. The cubic root of 381300638 is about 725.1410826510.

The spelling of 381300638 in words is "three hundred eighty-one million, three hundred thousand, six hundred thirty-eight".