38539538 has 4 divisors (see below), whose sum is σ = 57809310. Its totient is φ = 19269768.

The previous prime is 38539517. The next prime is 38539583. The reversal of 38539538 is 83593583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83593583 = 181 ⋅461843.

It can be written as a sum of positive squares in only one way, i.e., 36084049 + 2455489 = 6007^2 + 1567^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9634883 + ... + 9634886.

Almost surely, 2^38539538 is an apocalyptic number.

38539538 is a deficient number, since it is larger than the sum of its proper divisors (19269772).

38539538 is a wasteful number, since it uses less digits than its factorization.

38539538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19269771.

The product of its digits is 388800, while the sum is 44.

The square root of 38539538 is about 6208.0220682597. The cubic root of 38539538 is about 337.7812211179.

The spelling of 38539538 in words is "thirty-eight million, five hundred thirty-nine thousand, five hundred thirty-eight".