42243235 has 8 divisors (see below), whose sum is σ = 52327296. Its totient is φ = 32704320.

The previous prime is 42243211. The next prime is 42243239. The reversal of 42243235 is 53234224.

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

It is not a de Polignac number, because 42243235 - 2⁷ = 42243107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136114 + ... + 136423.

It is an arithmetic number, because the mean of its divisors is an integer number (6540912).

Almost surely, 2^42243235 is an apocalyptic number.

42243235 is a deficient number, since it is larger than the sum of its proper divisors (10084061).

42243235 is a wasteful number, since it uses less digits than its factorization.

42243235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272573.

The product of its digits is 5760, while the sum is 25.

The square root of 42243235 is about 6499.4795945522. The cubic root of 42243235 is about 348.2723981432.

Adding to 42243235 its reverse (53234224), we get a palindrome (95477459).

The spelling of 42243235 in words is "forty-two million, two hundred forty-three thousand, two hundred thirty-five".