38538609 has 16 divisors (see below), whose sum is σ = 54577152. Its totient is φ = 24105728.

The previous prime is 38538607. The next prime is 38538613. The reversal of 38538609 is 90683583.

It is not a de Polignac number, because 38538609 - 2¹ = 38538607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38538607) 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 15 ways as a sum of consecutive naturals, for example, 18547 + ... + 20519.

It is an arithmetic number, because the mean of its divisors is an integer number (3411072).

Almost surely, 2^38538609 is an apocalyptic number.

It is an amenable number.

38538609 is a deficient number, since it is larger than the sum of its proper divisors (16038543).

38538609 is a wasteful number, since it uses less digits than its factorization.

38538609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 38538609 is about 6207.9472452655. The cubic root of 38538609 is about 337.7785070110.

The spelling of 38538609 in words is "thirty-eight million, five hundred thirty-eight thousand, six hundred nine".