42843172 has 12 divisors (see below), whose sum is σ = 75079900. Its totient is φ = 21391776.

The previous prime is 42843161. The next prime is 42843173. The reversal of 42843172 is 27134824.

It can be written as a sum of positive squares in 2 ways, for example, as 34409956 + 8433216 = 5866^2 + 2904^2 .

It is not an unprimeable number, because it can be changed into a prime (42843173) 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, 4047 + ... + 10102.

Almost surely, 2^42843172 is an apocalyptic number.

It is an amenable number.

42843172 is a deficient number, since it is larger than the sum of its proper divisors (32236728).

42843172 is a wasteful number, since it uses less digits than its factorization.

42843172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14910 (or 14908 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 42843172 is about 6545.4695782656. The cubic root of 42843172 is about 349.9133717578.

Adding to 42843172 its reverse (27134824), we get a palindrome (69977996).

The spelling of 42843172 in words is "forty-two million, eight hundred forty-three thousand, one hundred seventy-two".