38238228 has 108 divisors (see below), whose sum is σ = 114840180. Its totient is φ = 10692864.

The previous prime is 38238209. The next prime is 38238229. The reversal of 38238228 is 82283283.

It can be written as a sum of positive squares in 2 ways, for example, as 31674384 + 6563844 = 5628^2 + 2562^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 38238192 and 38238201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38238229) 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 35 ways as a sum of consecutive naturals, for example, 93288 + ... + 93696.

It is an arithmetic number, because the mean of its divisors is an integer number (1063335).

Almost surely, 2^38238228 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 38238228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57420090).

38238228 is an abundant number, since it is smaller than the sum of its proper divisors (76601952).

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

38238228 is a wasteful number, since it uses less digits than its factorization.

38238228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 474 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 38238228 is about 6183.7066553969. The cubic root of 38238228 is about 336.8986361107.

The spelling of 38238228 in words is "thirty-eight million, two hundred thirty-eight thousand, two hundred twenty-eight".