38648109 has 8 divisors (see below), whose sum is σ = 54243040. Its totient is φ = 24409296.

The previous prime is 38648107. The next prime is 38648149. The reversal of 38648109 is 90184683.

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

It is not a de Polignac number, because 38648109 - 2¹ = 38648107 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338962 + ... + 339075.

It is an arithmetic number, because the mean of its divisors is an integer number (6780380).

Almost surely, 2^38648109 is an apocalyptic number.

It is an amenable number.

38648109 is a deficient number, since it is larger than the sum of its proper divisors (15594931).

38648109 is a wasteful number, since it uses less digits than its factorization.

38648109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678059.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 38648109 is about 6216.7603299468. The cubic root of 38648109 is about 338.0981152553.

The spelling of 38648109 in words is "thirty-eight million, six hundred forty-eight thousand, one hundred nine".