38887816 has 16 divisors (see below), whose sum is σ = 79543440. Its totient is φ = 17676240.

The previous prime is 38887799. The next prime is 38887819. The reversal of 38887816 is 61878883.

It is a self number, because there is not a number n which added to its sum of digits gives 38887816.

It is not an unprimeable number, because it can be changed into a prime (38887819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220866 + ... + 221041.

It is an arithmetic number, because the mean of its divisors is an integer number (4971465).

Almost surely, 2^38887816 is an apocalyptic number.

It is an amenable number.

38887816 is an abundant number, since it is smaller than the sum of its proper divisors (40655624).

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

38887816 is a wasteful number, since it uses less digits than its factorization.

38887816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441924 (or 441920 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The square root of 38887816 is about 6236.0096215449. The cubic root of 38887816 is about 338.7956699181.

The spelling of 38887816 in words is "thirty-eight million, eight hundred eighty-seven thousand, eight hundred sixteen".