42202331 has 4 divisors (see below), whose sum is σ = 42216192. Its totient is φ = 42188472.

The previous prime is 42202297. The next prime is 42202333. The reversal of 42202331 is 13320224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42202331 - 2⁶ = 42202267 is a prime.

It is a super-2 number, since 2×42202331² = 3562073483667122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42202333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 9188.

It is an arithmetic number, because the mean of its divisors is an integer number (10554048).

Almost surely, 2^42202331 is an apocalyptic number.

42202331 is a deficient number, since it is larger than the sum of its proper divisors (13861).

42202331 is an equidigital number, since it uses as much as digits as its factorization.

42202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13860.

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

The square root of 42202331 is about 6496.3321189730. The cubic root of 42202331 is about 348.1599514624.

Adding to 42202331 its reverse (13320224), we get a palindrome (55522555).

The spelling of 42202331 in words is "forty-two million, two hundred two thousand, three hundred thirty-one".