42244311 has 4 divisors (see below), whose sum is σ = 56325752. Its totient is φ = 28162872.

The previous prime is 42244291. The next prime is 42244327. The reversal of 42244311 is 11344224.

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

It is not a de Polignac number, because 42244311 - 2⁶ = 42244247 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 (42242311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7040716 + ... + 7040721.

It is an arithmetic number, because the mean of its divisors is an integer number (14081438).

Almost surely, 2^42244311 is an apocalyptic number.

42244311 is a deficient number, since it is larger than the sum of its proper divisors (14081441).

42244311 is a wasteful number, since it uses less digits than its factorization.

42244311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081440.

The product of its digits is 768, while the sum is 21.

The square root of 42244311 is about 6499.5623698831. The cubic root of 42244311 is about 348.2753551289.

Adding to 42244311 its reverse (11344224), we get a palindrome (53588535).

The spelling of 42244311 in words is "forty-two million, two hundred forty-four thousand, three hundred eleven".