38505616 has 20 divisors (see below), whose sum is σ = 75178224. Its totient is φ = 19104800.

The previous prime is 38505587. The next prime is 38505617. The reversal of 38505616 is 61650583.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38505617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7090 + ... + 11281.

Almost surely, 2^38505616 is an apocalyptic number.

It is an amenable number.

38505616 is a deficient number, since it is larger than the sum of its proper divisors (36672608).

38505616 is a wasteful number, since it uses less digits than its factorization.

38505616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18510 (or 18504 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 38505616 is about 6205.2893566698. The cubic root of 38505616 is about 337.6820884815.

The spelling of 38505616 in words is "thirty-eight million, five hundred five thousand, six hundred sixteen".