42334309 has 4 divisors (see below), whose sum is σ = 42511680. Its totient is φ = 42156940.

The previous prime is 42334291. The next prime is 42334343. The reversal of 42334309 is 90343324.

42334309 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 42334309 - 2²¹ = 40237157 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 (42334009) 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, 88327 + ... + 88804.

It is an arithmetic number, because the mean of its divisors is an integer number (10627920).

Almost surely, 2^42334309 is an apocalyptic number.

It is an amenable number.

42334309 is a deficient number, since it is larger than the sum of its proper divisors (177371).

42334309 is a wasteful number, since it uses less digits than its factorization.

42334309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177370.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 42334309 is about 6506.4820755920. The cubic root of 42334309 is about 348.5225036191.

The spelling of 42334309 in words is "forty-two million, three hundred thirty-four thousand, three hundred nine".