42256671 has 8 divisors (see below), whose sum is σ = 56454960. Its totient is φ = 28114752.

The previous prime is 42256667. The next prime is 42256693. The reversal of 42256671 is 17665224.

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

It is not a de Polignac number, because 42256671 - 2² = 42256667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42256631) 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, 12310 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (7056870).

Almost surely, 2^42256671 is an apocalyptic number.

42256671 is a deficient number, since it is larger than the sum of its proper divisors (14198289).

42256671 is a wasteful number, since it uses less digits than its factorization.

42256671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28185.

The product of its digits is 20160, while the sum is 33.

The square root of 42256671 is about 6500.5131335918. The cubic root of 42256671 is about 348.3093183895.

The spelling of 42256671 in words is "forty-two million, two hundred fifty-six thousand, six hundred seventy-one".