42443012 has 12 divisors (see below), whose sum is σ = 74468940. Its totient is φ = 21166176.

The previous prime is 42442997. The next prime is 42443039. The reversal of 42443012 is 21034424.

It can be written as a sum of positive squares in 2 ways, for example, as 9449476 + 32993536 = 3074^2 + 5744^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12083 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (6205745).

Almost surely, 2^42443012 is an apocalyptic number.

It is an amenable number.

42443012 is a deficient number, since it is larger than the sum of its proper divisors (32025928).

42443012 is a wasteful number, since it uses less digits than its factorization.

42443012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27670 (or 27668 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42443012 is about 6514.8301589527. The cubic root of 42443012 is about 348.8205523514.

Adding to 42443012 its reverse (21034424), we get a palindrome (63477436).

The spelling of 42443012 in words is "forty-two million, four hundred forty-three thousand, twelve".