42081235 has 8 divisors (see below), whose sum is σ = 57711456. Its totient is φ = 28855680.

The previous prime is 42081227. The next prime is 42081241. The reversal of 42081235 is 53218024.

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

It is not a de Polignac number, because 42081235 - 2³ = 42081227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601126 + ... + 601195.

It is an arithmetic number, because the mean of its divisors is an integer number (7213932).

Almost surely, 2^42081235 is an apocalyptic number.

42081235 is a deficient number, since it is larger than the sum of its proper divisors (15630221).

42081235 is a wasteful number, since it uses less digits than its factorization.

42081235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202333.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42081235 is about 6487.0050870953. The cubic root of 42081235 is about 347.8266273191.

Adding to 42081235 its reverse (53218024), we get a palindrome (95299259).

The spelling of 42081235 in words is "forty-two million, eighty-one thousand, two hundred thirty-five".