42257873 has 8 divisors (see below), whose sum is σ = 48877248. Its totient is φ = 35784144.

The previous prime is 42257861. The next prime is 42257899. The reversal of 42257873 is 37875224.

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 42257873 - 2⁴ = 42257857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42257833) 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, 35786 + ... + 36947.

It is an arithmetic number, because the mean of its divisors is an integer number (6109656).

Almost surely, 2^42257873 is an apocalyptic number.

It is an amenable number.

42257873 is a deficient number, since it is larger than the sum of its proper divisors (6619375).

42257873 is an equidigital number, since it uses as much as digits as its factorization.

42257873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72823.

The product of its digits is 94080, while the sum is 38.

The square root of 42257873 is about 6500.6055871742. The cubic root of 42257873 is about 348.3126209357.

The spelling of 42257873 in words is "forty-two million, two hundred fifty-seven thousand, eight hundred seventy-three".