38000778 has 8 divisors (see below), whose sum is σ = 76001568. Its totient is φ = 12666924.

The previous prime is 38000773. The next prime is 38000801. The reversal of 38000778 is 87700083.

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

38000778 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38000771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3166726 + ... + 3166737.

It is an arithmetic number, because the mean of its divisors is an integer number (9500196).

Almost surely, 2^38000778 is an apocalyptic number.

38000778 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.

38000778 is a wasteful number, since it uses less digits than its factorization.

38000778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333468.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 38000778 is about 6164.4771067788. The cubic root of 38000778 is about 336.1998350650.

The spelling of 38000778 in words is "thirty-eight million, seven hundred seventy-eight", and thus it is an aban number.