42734291 has 2 divisors, whose sum is σ = 42734292. Its totient is φ = 42734290.

The previous prime is 42734269. The next prime is 42734309. The reversal of 42734291 is 19243724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42734291 - 2¹⁸ = 42472147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42734201) 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 as a sum of consecutive naturals, namely, 21367145 + 21367146.

It is an arithmetic number, because the mean of its divisors is an integer number (21367146).

Almost surely, 2^42734291 is an apocalyptic number.

42734291 is a deficient number, since it is larger than the sum of its proper divisors (1).

42734291 is an equidigital number, since it uses as much as digits as its factorization.

42734291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 42734291 is about 6537.1470076785. The cubic root of 42734291 is about 349.6166987496.

The spelling of 42734291 in words is "forty-two million, seven hundred thirty-four thousand, two hundred ninety-one".