42444143 has 24 divisors (see below), whose sum is σ = 52035984. Its totient is φ = 34473600.

The previous prime is 42444133. The next prime is 42444151. The reversal of 42444143 is 34144424.

It is a happy number.

It is not a de Polignac number, because 42444143 - 2⁶ = 42444079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74048 + ... + 74618.

It is an arithmetic number, because the mean of its divisors is an integer number (2168166).

Almost surely, 2^42444143 is an apocalyptic number.

42444143 is a deficient number, since it is larger than the sum of its proper divisors (9591841).

42444143 is a wasteful number, since it uses less digits than its factorization.

42444143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 656 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 42444143 is about 6514.9169603303. The cubic root of 42444143 is about 348.8236507220.

Adding to 42444143 its reverse (34144424), we get a palindrome (76588567).

The spelling of 42444143 in words is "forty-two million, four hundred forty-four thousand, one hundred forty-three".