38909808 has 100 divisors (see below), whose sum is σ = 128734320. Its totient is φ = 11114496.

The previous prime is 38909807. The next prime is 38909809. The reversal of 38909808 is 80890983.

38909808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38909807) and next prime (38909809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38909807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6928 + ... + 11216.

Almost surely, 2^38909808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38909808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64367160).

38909808 is an abundant number, since it is smaller than the sum of its proper divisors (89824512).

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

38909808 is a wasteful number, since it uses less digits than its factorization.

38909808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316 (or 4301 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 38909808 is about 6237.7726794105. The cubic root of 38909808 is about 338.8595235964.

The spelling of 38909808 in words is "thirty-eight million, nine hundred nine thousand, eight hundred eight".