42234213 has 16 divisors (see below), whose sum is σ = 65854976. Its totient is φ = 23572080.

The previous prime is 42234209. The next prime is 42234229. The reversal of 42234213 is 31243224.

It is not a de Polignac number, because 42234213 - 2² = 42234209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42234213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42234263) by changing a digit.

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, 22483 + ... + 24288.

It is an arithmetic number, because the mean of its divisors is an integer number (4115936).

Almost surely, 2^42234213 is an apocalyptic number.

42234213 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42234213 is a deficient number, since it is larger than the sum of its proper divisors (23620763).

42234213 is a wasteful number, since it uses less digits than its factorization.

42234213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46824.

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

The square root of 42234213 is about 6498.7855019226. The cubic root of 42234213 is about 348.2476025573.

Adding to 42234213 its reverse (31243224), we get a palindrome (73477437).

The spelling of 42234213 in words is "forty-two million, two hundred thirty-four thousand, two hundred thirteen".