38782158 has 8 divisors (see below), whose sum is σ = 77564328. Its totient is φ = 12927384.

The previous prime is 38782129. The next prime is 38782169. The reversal of 38782158 is 85128783.

It is a happy number.

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

38782158 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231841 + ... + 3231852.

It is an arithmetic number, because the mean of its divisors is an integer number (9695541).

Almost surely, 2^38782158 is an apocalyptic number.

38782158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38782158 is a wasteful number, since it uses less digits than its factorization.

38782158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463698.

The product of its digits is 107520, while the sum is 42.

The square root of 38782158 is about 6227.5322560385. The cubic root of 38782158 is about 338.4885562322.

The spelling of 38782158 in words is "thirty-eight million, seven hundred eighty-two thousand, one hundred fifty-eight".