38009808 has 30 divisors (see below), whose sum is σ = 106375074. Its totient is φ = 12669888.

The previous prime is 38009801. The next prime is 38009809. The reversal of 38009808 is 80890083.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 1140624 = 6072^2 + 1068^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38009801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131835 + ... + 132122.

Almost surely, 2^38009808 is an apocalyptic number.

It is an amenable number.

38009808 is an abundant number, since it is smaller than the sum of its proper divisors (68365266).

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

38009808 is a wasteful number, since it uses less digits than its factorization.

38009808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263971 (or 263962 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 38009808 is about 6165.2094854920. The cubic root of 38009808 is about 336.2264629766.

The spelling of 38009808 in words is "thirty-eight million, nine thousand, eight hundred eight".