42734305 has 8 divisors (see below), whose sum is σ = 51346152. Its totient is φ = 34144128.

The previous prime is 42734291. The next prime is 42734309. The reversal of 42734305 is 50343724.

It can be written as a sum of positive squares in 4 ways, for example, as 5377761 + 37356544 = 2319^2 + 6112^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42734305 - 2²¹ = 40637153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42734309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 9271.

It is an arithmetic number, because the mean of its divisors is an integer number (6418269).

Almost surely, 2^42734305 is an apocalyptic number.

It is an amenable number.

42734305 is a deficient number, since it is larger than the sum of its proper divisors (8611847).

42734305 is an equidigital number, since it uses as much as digits as its factorization.

42734305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 42734305 is about 6537.1480784819. The cubic root of 42734305 is about 349.6167369284.

The spelling of 42734305 in words is "forty-two million, seven hundred thirty-four thousand, three hundred five".