38618856 has 80 divisors (see below), whose sum is σ = 110054340. Its totient is φ = 12648960.

The previous prime is 38618813. The next prime is 38618873. The reversal of 38618856 is 65881683.

It can be written as a sum of positive squares in 2 ways, for example, as 38564100 + 54756 = 6210^2 + 234^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39040 + ... + 40016.

Almost surely, 2^38618856 is an apocalyptic number.

38618856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38618856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55027170).

38618856 is an abundant number, since it is smaller than the sum of its proper divisors (71435484).

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

38618856 is a wasteful number, since it uses less digits than its factorization.

38618856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1043 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 38618856 is about 6214.4071318188. The cubic root of 38618856 is about 338.0127908515.

The spelling of 38618856 in words is "thirty-eight million, six hundred eighteen thousand, eight hundred fifty-six".