42243412 has 12 divisors (see below), whose sum is σ = 75499200. Its totient is φ = 20672216.

The previous prime is 42243389. The next prime is 42243413. The reversal of 42243412 is 21434224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243413) 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, 112162 + ... + 112537.

It is an arithmetic number, because the mean of its divisors is an integer number (6291600).

Almost surely, 2^42243412 is an apocalyptic number.

It is an amenable number.

42243412 is a deficient number, since it is larger than the sum of its proper divisors (33255788).

42243412 is a wasteful number, since it uses less digits than its factorization.

42243412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224750 (or 224748 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 42243412 is about 6499.4932110127. The cubic root of 42243412 is about 348.2728845653.

Adding to 42243412 its reverse (21434224), we get a palindrome (63677636).

It can be divided in two parts, 422 and 43412, that added together give a palindrome (43834).

The spelling of 42243412 in words is "forty-two million, two hundred forty-three thousand, four hundred twelve".