38368109 has 8 divisors (see below), whose sum is σ = 41700120. Its totient is φ = 35090496.

The previous prime is 38368103. The next prime is 38368129. The reversal of 38368109 is 90186383.

It can be written as a sum of positive squares in 4 ways, for example, as 8282884 + 30085225 = 2878^2 + 5485^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38368109 - 2²⁴ = 21590893 is a prime.

It is a super-2 number, since 2×38368109² = 2944223576471762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38368103) 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, 12122 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (5212515).

Almost surely, 2^38368109 is an apocalyptic number.

It is an amenable number.

38368109 is a deficient number, since it is larger than the sum of its proper divisors (3332011).

38368109 is a wasteful number, since it uses less digits than its factorization.

38368109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27199.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 38368109 is about 6194.1996254561. The cubic root of 38368109 is about 337.2796447292.

The spelling of 38368109 in words is "thirty-eight million, three hundred sixty-eight thousand, one hundred nine".