42243353 has 4 divisors (see below), whose sum is σ = 42295140. Its totient is φ = 42191568.

The previous prime is 42243349. The next prime is 42243361. The reversal of 42243353 is 35334224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 11916304 = 5507^2 + 3452^2 .

It is a cyclic number.

It is not a de Polignac number, because 42243353 - 2² = 42243349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243373) 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, 24650 + ... + 26307.

It is an arithmetic number, because the mean of its divisors is an integer number (10573785).

Almost surely, 2^42243353 is an apocalyptic number.

It is an amenable number.

42243353 is a deficient number, since it is larger than the sum of its proper divisors (51787).

42243353 is an equidigital number, since it uses as much as digits as its factorization.

42243353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51786.

The product of its digits is 8640, while the sum is 26.

The square root of 42243353 is about 6499.4886721957. The cubic root of 42243353 is about 348.2727224248.

Adding to 42243353 its reverse (35334224), we get a palindrome (77577577).

The spelling of 42243353 in words is "forty-two million, two hundred forty-three thousand, three hundred fifty-three".