42257863 has 4 divisors (see below), whose sum is σ = 43240648. Its totient is φ = 41275080.

The previous prime is 42257861. The next prime is 42257899. The reversal of 42257863 is 36875224.

42257863 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 is a cyclic number.

It is not a de Polignac number, because 42257863 - 2¹ = 42257861 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 (42257861) 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, 491328 + ... + 491413.

It is an arithmetic number, because the mean of its divisors is an integer number (10810162).

Almost surely, 2^42257863 is an apocalyptic number.

42257863 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42257863 is a deficient number, since it is larger than the sum of its proper divisors (982785).

42257863 is an equidigital number, since it uses as much as digits as its factorization.

42257863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982784.

The product of its digits is 80640, while the sum is 37.

The square root of 42257863 is about 6500.6048180150. The cubic root of 42257863 is about 348.3125934605.

It can be divided in two parts, 422 and 57863, that added together give a palindrome (58285).

The spelling of 42257863 in words is "forty-two million, two hundred fifty-seven thousand, eight hundred sixty-three".