42857305 has 16 divisors (see below), whose sum is σ = 52747200. Its totient is φ = 33417280.

The previous prime is 42857267. The next prime is 42857329. The reversal of 42857305 is 50375824.

It is a happy number.

It is not a de Polignac number, because 42857305 - 2¹⁹ = 42333017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38091 + ... + 39199.

It is an arithmetic number, because the mean of its divisors is an integer number (3296700).

Almost surely, 2^42857305 is an apocalyptic number.

It is an amenable number.

42857305 is a deficient number, since it is larger than the sum of its proper divisors (9889895).

42857305 is a wasteful number, since it uses less digits than its factorization.

42857305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 42857305 is about 6546.5490909333. The cubic root of 42857305 is about 349.9518437146.

The spelling of 42857305 in words is "forty-two million, eight hundred fifty-seven thousand, three hundred five".