38999985 has 8 divisors (see below), whose sum is σ = 62400000. Its totient is φ = 20799984.

The previous prime is 38999981. The next prime is 38999993. The reversal of 38999985 is 58999983.

38999985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38999985 - 2² = 38999981 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (38999981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299985 + ... + 1300014.

It is an arithmetic number, because the mean of its divisors is an integer number (7800000).

Almost surely, 2^38999985 is an apocalyptic number.

It is an amenable number.

38999985 is a deficient number, since it is larger than the sum of its proper divisors (23400015).

38999985 is a wasteful number, since it uses less digits than its factorization.

38999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600007.

The product of its digits is 6298560, while the sum is 60.

The square root of 38999985 is about 6244.9967974371. The cubic root of 38999985 is about 339.1211008243.

The spelling of 38999985 in words is "thirty-eight million, nine hundred ninety-nine thousand, nine hundred eighty-five".