42257003 has 8 divisors (see below), whose sum is σ = 45120768. Its totient is φ = 39478824.

The previous prime is 42256961. The next prime is 42257027. The reversal of 42257003 is 30075224.

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 42257003 - 2¹⁸ = 41994859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42257003.

It is not an unprimeable number, because it can be changed into a prime (42257093) 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, 20375 + ... + 22352.

It is an arithmetic number, because the mean of its divisors is an integer number (5640096).

Almost surely, 2^42257003 is an apocalyptic number.

42257003 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42257003 is a deficient number, since it is larger than the sum of its proper divisors (2863765).

42257003 is a wasteful number, since it uses less digits than its factorization.

42257003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42793.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 42257003 is about 6500.5386699873. The cubic root of 42257003 is about 348.3102305799.

The spelling of 42257003 in words is "forty-two million, two hundred fifty-seven thousand, three".