42208235 has 16 divisors (see below), whose sum is σ = 51692256. Its totient is φ = 33078528.

The previous prime is 42208219. The next prime is 42208237. The reversal of 42208235 is 53280224.

It is a cyclic number.

It is not a de Polignac number, because 42208235 - 2⁴ = 42208219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42208237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71612 + ... + 72198.

It is an arithmetic number, because the mean of its divisors is an integer number (3230766).

Almost surely, 2^42208235 is an apocalyptic number.

42208235 is a deficient number, since it is larger than the sum of its proper divisors (9484021).

42208235 is a wasteful number, since it uses less digits than its factorization.

42208235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 42208235 is about 6496.7865133464. The cubic root of 42208235 is about 348.1761862727.

Adding to 42208235 its reverse (53280224), we get a palindrome (95488459).

The spelling of 42208235 in words is "forty-two million, two hundred eight thousand, two hundred thirty-five".