38381678 has 4 divisors (see below), whose sum is σ = 57572520. Its totient is φ = 19190838.

The previous prime is 38381669. The next prime is 38381701. The reversal of 38381678 is 87618383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87618383 = 211 ⋅415253.

It is an alternating number because its digits alternate between odd and even.

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, 9595418 + ... + 9595421.

It is an arithmetic number, because the mean of its divisors is an integer number (14393130).

Almost surely, 2^38381678 is an apocalyptic number.

38381678 is a deficient number, since it is larger than the sum of its proper divisors (19190842).

38381678 is a wasteful number, since it uses less digits than its factorization.

38381678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19190841.

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

The square root of 38381678 is about 6195.2948275284. The cubic root of 38381678 is about 337.3194000383.

The spelling of 38381678 in words is "thirty-eight million, three hundred eighty-one thousand, six hundred seventy-eight".