38638288 has 30 divisors (see below), whose sum is σ = 80807762. Its totient is φ = 17791680.

The previous prime is 38638283. The next prime is 38638309. The reversal of 38638288 is 88283683.

It can be written as a sum of positive squares in only one way, i.e., 26749584 + 11888704 = 5172^2 + 3448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38638283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89433 + ... + 89863.

Almost surely, 2^38638288 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 38638288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40403881).

38638288 is an abundant number, since it is smaller than the sum of its proper divisors (42169474).

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

38638288 is an equidigital number, since it uses as much as digits as its factorization.

38638288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 446 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 38638288 is about 6215.9703988999. The cubic root of 38638288 is about 338.0694744156.

The spelling of 38638288 in words is "thirty-eight million, six hundred thirty-eight thousand, two hundred eighty-eight".