38648565 has 48 divisors (see below), whose sum is σ = 74692800. Its totient is φ = 18372096.

The previous prime is 38648549. The next prime is 38648567. The reversal of 38648565 is 56584683.

38648565 is a `hidden beast` number, since 3 + 86 + 4 + 8 + 565 = 666.

It is not a de Polignac number, because 38648565 - 2⁴ = 38648549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38648565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13206 + ... + 15864.

It is an arithmetic number, because the mean of its divisors is an integer number (1556100).

Almost surely, 2^38648565 is an apocalyptic number.

It is an amenable number.

38648565 is a deficient number, since it is larger than the sum of its proper divisors (36044235).

38648565 is a wasteful number, since it uses less digits than its factorization.

38648565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706 (or 2703 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 38648565 is about 6216.7970048893. The cubic root of 38648565 is about 338.0994449636.

The spelling of 38648565 in words is "thirty-eight million, six hundred forty-eight thousand, five hundred sixty-five".