42386109 has 4 divisors (see below), whose sum is σ = 56514816. Its totient is φ = 28257404.

The previous prime is 42386059. The next prime is 42386129. The reversal of 42386109 is 90168324.

42386109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42386109 - 2⁹ = 42385597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42386109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42386129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064349 + ... + 7064354.

It is an arithmetic number, because the mean of its divisors is an integer number (14128704).

Almost surely, 2^42386109 is an apocalyptic number.

It is an amenable number.

42386109 is a deficient number, since it is larger than the sum of its proper divisors (14128707).

42386109 is a wasteful number, since it uses less digits than its factorization.

42386109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14128706.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 42386109 is about 6510.4615043789. The cubic root of 42386109 is about 348.6645956775.

The spelling of 42386109 in words is "forty-two million, three hundred eighty-six thousand, one hundred nine".