42233021 has 8 divisors (see below), whose sum is σ = 43456344. Its totient is φ = 41014080.

The previous prime is 42233017. The next prime is 42233041. The reversal of 42233021 is 12033224.

42233021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6100900 + 36132121 = 2470^2 + 6011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42233021 - 2² = 42233017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42233041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34211 + ... + 35423.

It is an arithmetic number, because the mean of its divisors is an integer number (5432043).

Almost surely, 2^42233021 is an apocalyptic number.

It is an amenable number.

42233021 is a deficient number, since it is larger than the sum of its proper divisors (1223323).

42233021 is a wasteful number, since it uses less digits than its factorization.

42233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 42233021 is about 6498.6937918323. The cubic root of 42233021 is about 348.2443262636.

Adding to 42233021 its reverse (12033224), we get a palindrome (54266245).

The spelling of 42233021 in words is "forty-two million, two hundred thirty-three thousand, twenty-one".