42834709 has 4 divisors (see below), whose sum is σ = 43879500. Its totient is φ = 41789920.

The previous prime is 42834703. The next prime is 42834733. The reversal of 42834709 is 90743824.

It is a happy number.

42834709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 19554084 + 23280625 = 4422^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 42834709 - 2¹³ = 42826517 is a prime.

It is a super-2 number, since 2×42834709² = 3669624590229362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42834703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522334 + ... + 522415.

It is an arithmetic number, because the mean of its divisors is an integer number (10969875).

Almost surely, 2^42834709 is an apocalyptic number.

It is an amenable number.

42834709 is a deficient number, since it is larger than the sum of its proper divisors (1044791).

42834709 is a wasteful number, since it uses less digits than its factorization.

42834709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044790.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 42834709 is about 6544.8230686551. The cubic root of 42834709 is about 349.8903302653.

The spelling of 42834709 in words is "forty-two million, eight hundred thirty-four thousand, seven hundred nine".