38868916 has 24 divisors (see below), whose sum is σ = 70672896. Its totient is φ = 18684960.

The previous prime is 38868913. The next prime is 38868971. The reversal of 38868916 is 61986883.

It is a self number, because there is not a number n which added to its sum of digits gives 38868916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38868913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19770 + ... + 21646.

It is an arithmetic number, because the mean of its divisors is an integer number (2944704).

Almost surely, 2^38868916 is an apocalyptic number.

It is an amenable number.

38868916 is a deficient number, since it is larger than the sum of its proper divisors (31803980).

38868916 is a wasteful number, since it uses less digits than its factorization.

38868916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079 (or 2077 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 38868916 is about 6234.4940452293. The cubic root of 38868916 is about 338.7407746111.

The spelling of 38868916 in words is "thirty-eight million, eight hundred sixty-eight thousand, nine hundred sixteen".