42275407 has 4 divisors (see below), whose sum is σ = 43258600. Its totient is φ = 41292216.

The previous prime is 42275381. The next prime is 42275411. The reversal of 42275407 is 70457224.

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 42275407 - 2¹⁵ = 42242639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42275477) 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, 491532 + ... + 491617.

It is an arithmetic number, because the mean of its divisors is an integer number (10814650).

Almost surely, 2^42275407 is an apocalyptic number.

42275407 is a deficient number, since it is larger than the sum of its proper divisors (983193).

42275407 is an equidigital number, since it uses as much as digits as its factorization.

42275407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983192.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 42275407 is about 6501.9540908868. The cubic root of 42275407 is about 348.3607892300.

The spelling of 42275407 in words is "forty-two million, two hundred seventy-five thousand, four hundred seven".