42244379 has 4 divisors (see below), whose sum is σ = 42269376. Its totient is φ = 42219384.

The previous prime is 42244369. The next prime is 42244393. The reversal of 42244379 is 97344224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42244379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42244369) 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 3 ways as a sum of consecutive naturals, for example, 9764 + ... + 13409.

It is an arithmetic number, because the mean of its divisors is an integer number (10567344).

Almost surely, 2^42244379 is an apocalyptic number.

42244379 is a deficient number, since it is larger than the sum of its proper divisors (24997).

42244379 is a wasteful number, since it uses less digits than its factorization.

42244379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996.

The product of its digits is 48384, while the sum is 35.

The square root of 42244379 is about 6499.5676010024. The cubic root of 42244379 is about 348.2755419999.

The spelling of 42244379 in words is "forty-two million, two hundred forty-four thousand, three hundred seventy-nine".