42223530 has 32 divisors (see below), whose sum is σ = 101507904. Its totient is φ = 11240576.

The previous prime is 42223523. The next prime is 42223543. The reversal of 42223530 is 3532224.

It is a junction number, because it is equal to n+sod(n) for n = 42223497 and 42223506.

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 15 ways as a sum of consecutive naturals, for example, 32269 + ... + 33551.

It is an arithmetic number, because the mean of its divisors is an integer number (3172122).

Almost surely, 2^42223530 is an apocalyptic number.

42223530 is an abundant number, since it is smaller than the sum of its proper divisors (59284374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42223530 is a wasteful number, since it uses less digits than its factorization.

42223530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 42223530 is about 6497.9635271368. The cubic root of 42223530 is about 348.2182374004.

Adding to 42223530 its reverse (3532224), we get a palindrome (45755754).

The spelling of 42223530 in words is "forty-two million, two hundred twenty-three thousand, five hundred thirty".