38434109 has 16 divisors (see below), whose sum is σ = 45163008. Its totient is φ = 32024832.

The previous prime is 38434091. The next prime is 38434133. The reversal of 38434109 is 90143483.

It is not a de Polignac number, because 38434109 - 2²⁴ = 21656893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38434189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64517 + ... + 65109.

It is an arithmetic number, because the mean of its divisors is an integer number (2822688).

Almost surely, 2^38434109 is an apocalyptic number.

It is an amenable number.

38434109 is a deficient number, since it is larger than the sum of its proper divisors (6728899).

38434109 is a wasteful number, since it uses less digits than its factorization.

38434109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 38434109 is about 6199.5249011517. The cubic root of 38434109 is about 337.4729276867.

The spelling of 38434109 in words is "thirty-eight million, four hundred thirty-four thousand, one hundred nine".