38504505 has 32 divisors (see below), whose sum is σ = 66648960. Its totient is φ = 18869760.

The previous prime is 38504503. The next prime is 38504509. The reversal of 38504505 is 50540583.

It is not a de Polignac number, because 38504505 - 2¹ = 38504503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38504503) 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 31 ways as a sum of consecutive naturals, for example, 73645 + ... + 74165.

It is an arithmetic number, because the mean of its divisors is an integer number (2082780).

Almost surely, 2^38504505 is an apocalyptic number.

It is an amenable number.

38504505 is a deficient number, since it is larger than the sum of its proper divisors (28144455).

38504505 is a wasteful number, since it uses less digits than its factorization.

38504505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 38504505 is about 6205.1998356217. The cubic root of 38504505 is about 337.6788407439.

The spelling of 38504505 in words is "thirty-eight million, five hundred four thousand, five hundred five".