38738228 has 6 divisors (see below), whose sum is σ = 67791906. Its totient is φ = 19369112.

The previous prime is 38738213. The next prime is 38738237. The reversal of 38738228 is 82283783.

It can be written as a sum of positive squares in only one way, i.e., 34904464 + 3833764 = 5908^2 + 1958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4842275 + ... + 4842282.

It is an arithmetic number, because the mean of its divisors is an integer number (11298651).

Almost surely, 2^38738228 is an apocalyptic number.

It is an amenable number.

38738228 is a deficient number, since it is larger than the sum of its proper divisors (29053678).

38738228 is a wasteful number, since it uses less digits than its factorization.

38738228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684561 (or 9684559 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 38738228 is about 6224.0041773765. The cubic root of 38738228 is about 338.3607017315.

The spelling of 38738228 in words is "thirty-eight million, seven hundred thirty-eight thousand, two hundred twenty-eight".