42432212 has 12 divisors (see below), whose sum is σ = 76067796. Its totient is φ = 20698560.

The previous prime is 42432209. The next prime is 42432223. The reversal of 42432212 is 21223424.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 40398736 = 1426^2 + 6356^2 .

It is a congruent number.

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, 129203 + ... + 129530.

It is an arithmetic number, because the mean of its divisors is an integer number (6338983).

Almost surely, 2^42432212 is an apocalyptic number.

It is an amenable number.

42432212 is a deficient number, since it is larger than the sum of its proper divisors (33635584).

42432212 is a wasteful number, since it uses less digits than its factorization.

42432212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258778 (or 258776 counting only the distinct ones).

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

The square root of 42432212 is about 6514.0012281239. The cubic root of 42432212 is about 348.7909630160.

Adding to 42432212 its reverse (21223424), we get a palindrome (63655636).

The spelling of 42432212 in words is "forty-two million, four hundred thirty-two thousand, two hundred twelve".