42520232 has 16 divisors (see below), whose sum is σ = 79874100. Its totient is φ = 21220480.

The previous prime is 42520217. The next prime is 42520259. The reversal of 42520232 is 23202524.

It can be written as a sum of positive squares in 2 ways, for example, as 39112516 + 3407716 = 6254^2 + 1846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119 + ... + 9222.

Almost surely, 2^42520232 is an apocalyptic number.

It is an amenable number.

42520232 is a deficient number, since it is larger than the sum of its proper divisors (37353868).

42520232 is a wasteful number, since it uses less digits than its factorization.

42520232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916 (or 9912 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42520232 is about 6520.7539441387. The cubic root of 42520232 is about 349.0319699889.

Adding to 42520232 its reverse (23202524), we get a palindrome (65722756).

The spelling of 42520232 in words is "forty-two million, five hundred twenty thousand, two hundred thirty-two".