42213432 has 16 divisors (see below), whose sum is σ = 105533640. Its totient is φ = 14071136.

The previous prime is 42213419. The next prime is 42213449. The reversal of 42213432 is 23431224.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42213399 and 42213408.

It is a congruent 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, 879423 + ... + 879470.

Almost surely, 2^42213432 is an apocalyptic number.

It is an amenable number.

42213432 is an abundant number, since it is smaller than the sum of its proper divisors (63320208).

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

42213432 is a wasteful number, since it uses less digits than its factorization.

42213432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758902 (or 1758898 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 42213432 is about 6497.1864680029. The cubic root of 42213432 is about 348.1904757226.

Adding to 42213432 its reverse (23431224), we get a palindrome (65644656).

The spelling of 42213432 in words is "forty-two million, two hundred thirteen thousand, four hundred thirty-two".