42454705 has 4 divisors (see below), whose sum is σ = 50945652. Its totient is φ = 33963760.

The previous prime is 42454681. The next prime is 42454733. The reversal of 42454705 is 50745424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24127744 + 18326961 = 4912^2 + 4281^2 .

It is not a de Polignac number, because 42454705 - 2⁵ = 42454673 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, 4245466 + ... + 4245475.

It is an arithmetic number, because the mean of its divisors is an integer number (12736413).

Almost surely, 2^42454705 is an apocalyptic number.

It is an amenable number.

42454705 is a deficient number, since it is larger than the sum of its proper divisors (8490947).

42454705 is an equidigital number, since it uses as much as digits as its factorization.

42454705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490946.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 42454705 is about 6515.7275111840. The cubic root of 42454705 is about 348.8525826277.

The spelling of 42454705 in words is "forty-two million, four hundred fifty-four thousand, seven hundred five".