42213452 has 12 divisors (see below), whose sum is σ = 73942176. Its totient is φ = 21087120.

The previous prime is 42213449. The next prime is 42213463. The reversal of 42213452 is 25431224.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638 + ... + 9210.

It is an arithmetic number, because the mean of its divisors is an integer number (6161848).

Almost surely, 2^42213452 is an apocalyptic number.

It is an amenable number.

42213452 is a deficient number, since it is larger than the sum of its proper divisors (31728724).

42213452 is a wasteful number, since it uses less digits than its factorization.

42213452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808 (or 9806 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 42213452 is about 6497.1880071305. The cubic root of 42213452 is about 348.1905307115.

Adding to 42213452 its reverse (25431224), we get a palindrome (67644676).

The spelling of 42213452 in words is "forty-two million, two hundred thirteen thousand, four hundred fifty-two".