42270557 has 8 divisors (see below), whose sum is σ = 48376896. Its totient is φ = 36181152.

The previous prime is 42270541. The next prime is 42270581. The reversal of 42270557 is 75507224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42270557 - 2⁴ = 42270541 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 (42270587) 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, 1673 + ... + 9345.

It is an arithmetic number, because the mean of its divisors is an integer number (6047112).

Almost surely, 2^42270557 is an apocalyptic number.

It is an amenable number.

42270557 is a deficient number, since it is larger than the sum of its proper divisors (6106339).

42270557 is an equidigital number, since it uses as much as digits as its factorization.

42270557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 42270557 is about 6501.5811153903. The cubic root of 42270557 is about 348.3474669499.

The spelling of 42270557 in words is "forty-two million, two hundred seventy thousand, five hundred fifty-seven".