42094505 has 4 divisors (see below), whose sum is σ = 50513412. Its totient is φ = 33675600.

The previous prime is 42094489. The next prime is 42094513. The reversal of 42094505 is 50549024.

It is a happy number.

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 15272464 + 26822041 = 3908^2 + 5179^2 .

It is not a de Polignac number, because 42094505 - 2⁴ = 42094489 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, 4209446 + ... + 4209455.

It is an arithmetic number, because the mean of its divisors is an integer number (12628353).

Almost surely, 2^42094505 is an apocalyptic number.

It is an amenable number.

42094505 is a deficient number, since it is larger than the sum of its proper divisors (8418907).

42094505 is an equidigital number, since it uses as much as digits as its factorization.

42094505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418906.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 42094505 is about 6488.0278205322. The cubic root of 42094505 is about 347.8631849777.

The spelling of 42094505 in words is "forty-two million, ninety-four thousand, five hundred five".