42844031 has 8 divisors (see below), whose sum is σ = 45198720. Its totient is φ = 40499352.

The previous prime is 42844013. The next prime is 42844079. The reversal of 42844031 is 13044824.

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

It is a cyclic number.

It is not a de Polignac number, because 42844031 - 2¹⁸ = 42581887 is a prime.

It is a super-2 number, since 2×42844031² = 3671221984657922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42844091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7316 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (5649840).

Almost surely, 2^42844031 is an apocalyptic number.

42844031 is a deficient number, since it is larger than the sum of its proper divisors (2354689).

42844031 is a wasteful number, since it uses less digits than its factorization.

42844031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 42844031 is about 6545.5351958415. The cubic root of 42844031 is about 349.9157103146.

Adding to 42844031 its reverse (13044824), we get a palindrome (55888855).

The spelling of 42844031 in words is "forty-two million, eight hundred forty-four thousand, thirty-one".