38168109 has 72 divisors (see below), whose sum is σ = 69144192. Its totient is φ = 20180160.

The previous prime is 38168101. The next prime is 38168129. The reversal of 38168109 is 90186183.

It is not a de Polignac number, because 38168109 - 2³ = 38168101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38168101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 537544 + ... + 537614.

It is an arithmetic number, because the mean of its divisors is an integer number (960336).

Almost surely, 2^38168109 is an apocalyptic number.

It is an amenable number.

38168109 is a deficient number, since it is larger than the sum of its proper divisors (30976083).

38168109 is a wasteful number, since it uses less digits than its factorization.

38168109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 38168109 is about 6178.0343961490. The cubic root of 38168109 is about 336.6925818477.

The spelling of 38168109 in words is "thirty-eight million, one hundred sixty-eight thousand, one hundred nine".