42710309 has 16 divisors (see below), whose sum is σ = 46812480. Its totient is φ = 38828160.

The previous prime is 42710303. The next prime is 42710351. The reversal of 42710309 is 90301724.

42710309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42710309 - 2⁴ = 42710293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42710303) 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 15 ways as a sum of consecutive naturals, for example, 49409 + ... + 50265.

It is an arithmetic number, because the mean of its divisors is an integer number (2925780).

Almost surely, 2^42710309 is an apocalyptic number.

It is an amenable number.

42710309 is a deficient number, since it is larger than the sum of its proper divisors (4102171).

42710309 is a wasteful number, since it uses less digits than its factorization.

42710309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 42710309 is about 6535.3124638383. The cubic root of 42710309 is about 349.5512862015.

The spelling of 42710309 in words is "forty-two million, seven hundred ten thousand, three hundred nine".