42042235 has 4 divisors (see below), whose sum is σ = 50450688. Its totient is φ = 33633784.

The previous prime is 42042227. The next prime is 42042263. The reversal of 42042235 is 53224024.

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

It is a cyclic number.

It is not a de Polignac number, because 42042235 - 2³ = 42042227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204219 + ... + 4204228.

It is an arithmetic number, because the mean of its divisors is an integer number (12612672).

Almost surely, 2^42042235 is an apocalyptic number.

42042235 is a deficient number, since it is larger than the sum of its proper divisors (8408453).

42042235 is an equidigital number, since it uses as much as digits as its factorization.

42042235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408452.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42042235 is about 6483.9983806290. The cubic root of 42042235 is about 347.7191413159.

Adding to 42042235 its reverse (53224024), we get a palindrome (95266259).

The spelling of 42042235 in words is "forty-two million, forty-two thousand, two hundred thirty-five".