42503212 has 24 divisors (see below), whose sum is σ = 77560560. Its totient is φ = 20354880.

The previous prime is 42503203. The next prime is 42503233. The reversal of 42503212 is 21230524.

It is a self number, because there is not a number n which added to its sum of digits gives 42503212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13798 + ... + 16594.

It is an arithmetic number, because the mean of its divisors is an integer number (3231690).

Almost surely, 2^42503212 is an apocalyptic number.

It is an amenable number.

42503212 is a deficient number, since it is larger than the sum of its proper divisors (35057348).

42503212 is a wasteful number, since it uses less digits than its factorization.

42503212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42503212 is about 6519.4487497027. The cubic root of 42503212 is about 348.9853935973.

Adding to 42503212 its reverse (21230524), we get a palindrome (63733736).

The spelling of 42503212 in words is "forty-two million, five hundred three thousand, two hundred twelve".