38648505 has 24 divisors (see below), whose sum is σ = 71934912. Its totient is φ = 17667552.

The previous prime is 38648483. The next prime is 38648509. The reversal of 38648505 is 50584683.

It is a happy number.

It is not a de Polignac number, because 38648505 - 2⁵ = 38648473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38648509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25557 + ... + 27026.

It is an arithmetic number, because the mean of its divisors is an integer number (2997288).

Almost surely, 2^38648505 is an apocalyptic number.

38648505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38648505 is a deficient number, since it is larger than the sum of its proper divisors (33286407).

38648505 is a wasteful number, since it uses less digits than its factorization.

38648505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52605 (or 52598 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 38648505 is about 6216.7921792513. The cubic root of 38648505 is about 338.0992700026.

The spelling of 38648505 in words is "thirty-eight million, six hundred forty-eight thousand, five hundred five".