38909008 has 30 divisors (see below), whose sum is σ = 78823514. Its totient is φ = 18604608.

The previous prime is 38908901. The next prime is 38909011. The reversal of 38909008 is 80090983.

It can be written as a sum of positive squares in only one way, i.e., 24681024 + 14227984 = 4968^2 + 3772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6166 + ... + 10762.

Almost surely, 2^38909008 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 38909008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39411757).

38909008 is an abundant number, since it is smaller than the sum of its proper divisors (39914506).

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

38909008 is a wasteful number, since it uses less digits than its factorization.

38909008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 38909008 is about 6237.7085536277. The cubic root of 38909008 is about 338.8572012216.

The spelling of 38909008 in words is "thirty-eight million, nine hundred nine thousand, eight".