42443572 has 12 divisors (see below), whose sum is σ = 74410336. Its totient is φ = 21183480.

The previous prime is 42443567. The next prime is 42443573. The reversal of 42443572 is 27534424.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42443573) 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, 7008 + ... + 11575.

Almost surely, 2^42443572 is an apocalyptic number.

It is an amenable number.

42443572 is a deficient number, since it is larger than the sum of its proper divisors (31966764).

42443572 is a wasteful number, since it uses less digits than its factorization.

42443572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19158 (or 19156 counting only the distinct ones).

The product of its digits is 26880, while the sum is 31.

The square root of 42443572 is about 6514.8731376751. The cubic root of 42443572 is about 348.8220864763.

Adding to 42443572 its reverse (27534424), we get a palindrome (69977996).

The spelling of 42443572 in words is "forty-two million, four hundred forty-three thousand, five hundred seventy-two".