38429109 has 6 divisors (see below), whose sum is σ = 55508726. Its totient is φ = 25619400.

The previous prime is 38429107. The next prime is 38429173. The reversal of 38429109 is 90192483.

It can be written as a sum of positive squares in only one way, i.e., 32524209 + 5904900 = 5703^2 + 2430^2 .

It is not a de Polignac number, because 38429109 - 2¹ = 38429107 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38429107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2134942 + ... + 2134959.

Almost surely, 2^38429109 is an apocalyptic number.

It is an amenable number.

38429109 is a deficient number, since it is larger than the sum of its proper divisors (17079617).

38429109 is a wasteful number, since it uses less digits than its factorization.

38429109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269907 (or 4269904 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 38429109 is about 6199.1216313281. The cubic root of 38429109 is about 337.4582927886.

The spelling of 38429109 in words is "thirty-eight million, four hundred twenty-nine thousand, one hundred nine".