42256697 has 8 divisors (see below), whose sum is σ = 48540096. Its totient is φ = 36034992.

The previous prime is 42256693. The next prime is 42256729. The reversal of 42256697 is 79665224.

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

It is not a de Polignac number, because 42256697 - 2² = 42256693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42256693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13943 + ... + 16700.

It is an arithmetic number, because the mean of its divisors is an integer number (6067512).

Almost surely, 2^42256697 is an apocalyptic number.

It is an amenable number.

42256697 is a deficient number, since it is larger than the sum of its proper divisors (6283399).

42256697 is a wasteful number, since it uses less digits than its factorization.

42256697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30847.

The product of its digits is 181440, while the sum is 41.

The square root of 42256697 is about 6500.5151334337. The cubic root of 42256697 is about 348.3093898262.

The spelling of 42256697 in words is "forty-two million, two hundred fifty-six thousand, six hundred ninety-seven".