42344439 has 8 divisors (see below), whose sum is σ = 56520192. Its totient is φ = 28199160.

The previous prime is 42344389. The next prime is 42344443. The reversal of 42344439 is 93444324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42344439 - 2¹³ = 42336247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42344479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (7065024).

Almost surely, 2^42344439 is an apocalyptic number.

42344439 is a deficient number, since it is larger than the sum of its proper divisors (14175753).

42344439 is a wasteful number, since it uses less digits than its factorization.

42344439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15237.

The product of its digits is 41472, while the sum is 33.

The square root of 42344439 is about 6507.2604834907. The cubic root of 42344439 is about 348.5503002336.

The spelling of 42344439 in words is "forty-two million, three hundred forty-four thousand, four hundred thirty-nine".