38421109 has 8 divisors (see below), whose sum is σ = 40165632. Its totient is φ = 36682800.

The previous prime is 38421101. The next prime is 38421113. The reversal of 38421109 is 90112483.

It is a happy number.

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 38421109 - 2³ = 38421101 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 (38421101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14932 + ... + 17314.

It is an arithmetic number, because the mean of its divisors is an integer number (5020704).

Almost surely, 2^38421109 is an apocalyptic number.

It is an amenable number.

38421109 is a deficient number, since it is larger than the sum of its proper divisors (1744523).

38421109 is a wasteful number, since it uses less digits than its factorization.

38421109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 38421109 is about 6198.4763450384. The cubic root of 38421109 is about 337.4348743108.

The spelling of 38421109 in words is "thirty-eight million, four hundred twenty-one thousand, one hundred nine".