38509028 has 6 divisors (see below), whose sum is σ = 67390806. Its totient is φ = 19254512.

The previous prime is 38509021. The next prime is 38509043. The reversal of 38509028 is 82090583.

38509028 is nontrivially palindromic in base 3.

38509028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30713764 + 7795264 = 5542^2 + 2792^2 .

It is not an unprimeable number, because it can be changed into a prime (38509021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4813625 + ... + 4813632.

It is an arithmetic number, because the mean of its divisors is an integer number (11231801).

Almost surely, 2^38509028 is an apocalyptic number.

It is an amenable number.

38509028 is a deficient number, since it is larger than the sum of its proper divisors (28881778).

38509028 is a wasteful number, since it uses less digits than its factorization.

38509028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627261 (or 9627259 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 38509028 is about 6205.5642773240. The cubic root of 38509028 is about 337.6920622410.

The spelling of 38509028 in words is "thirty-eight million, five hundred nine thousand, twenty-eight".