38638995 has 8 divisors (see below), whose sum is σ = 61822416. Its totient is φ = 20607456.

The previous prime is 38638969. The next prime is 38638997. The reversal of 38638995 is 59983683.

38638995 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 38638995 - 2⁶ = 38638931 is a prime.

It is a super-2 number, since 2×38638995² = 2985943869220050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38638997) 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, 1287952 + ... + 1287981.

It is an arithmetic number, because the mean of its divisors is an integer number (7727802).

Almost surely, 2^38638995 is an apocalyptic number.

38638995 is a deficient number, since it is larger than the sum of its proper divisors (23183421).

38638995 is a wasteful number, since it uses less digits than its factorization.

38638995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575941.

The product of its digits is 1399680, while the sum is 51.

The square root of 38638995 is about 6216.0272682800. The cubic root of 38638995 is about 338.0715363915.

The spelling of 38638995 in words is "thirty-eight million, six hundred thirty-eight thousand, nine hundred ninety-five".