42235427 has 4 divisors (see below), whose sum is σ = 45484320. Its totient is φ = 38986536.

The previous prime is 42235411. The next prime is 42235439. The reversal of 42235427 is 72453224.

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 42235427 - 2⁴ = 42235411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42235427.

It is not an unprimeable number, because it can be changed into a prime (42255427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624427 + ... + 1624452.

It is an arithmetic number, because the mean of its divisors is an integer number (11371080).

Almost surely, 2^42235427 is an apocalyptic number.

42235427 is a deficient number, since it is larger than the sum of its proper divisors (3248893).

42235427 is a wasteful number, since it uses less digits than its factorization.

42235427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248892.

The product of its digits is 13440, while the sum is 29.

The square root of 42235427 is about 6498.8789033186. The cubic root of 42235427 is about 348.2509392560.

The spelling of 42235427 in words is "forty-two million, two hundred thirty-five thousand, four hundred twenty-seven".