38616786 has 48 divisors (see below), whose sum is σ = 90627264. Its totient is φ = 11813472.

The previous prime is 38616749. The next prime is 38616803. The reversal of 38616786 is 68761683.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52755 + ... + 53481.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^38616786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38616786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45313632).

38616786 is an abundant number, since it is smaller than the sum of its proper divisors (52010478).

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

38616786 is a wasteful number, since it uses less digits than its factorization.

38616786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 972 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 38616786 is about 6214.2405811169. The cubic root of 38616786 is about 338.0067514962.

The spelling of 38616786 in words is "thirty-eight million, six hundred sixteen thousand, seven hundred eighty-six".