38540515 has 8 divisors (see below), whose sum is σ = 49806288. Its totient is φ = 28460640.

The previous prime is 38540503. The next prime is 38540519. The reversal of 38540515 is 51504583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38540515 - 2¹⁹ = 38016227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38540519) 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 7 ways as a sum of consecutive naturals, for example, 296401 + ... + 296530.

It is an arithmetic number, because the mean of its divisors is an integer number (6225786).

Almost surely, 2^38540515 is an apocalyptic number.

38540515 is a deficient number, since it is larger than the sum of its proper divisors (11265773).

38540515 is a wasteful number, since it uses less digits than its factorization.

38540515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592949.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 38540515 is about 6208.1007562700. The cubic root of 38540515 is about 337.7840754114.

The spelling of 38540515 in words is "thirty-eight million, five hundred forty thousand, five hundred fifteen".