42256726 has 8 divisors (see below), whose sum is σ = 63413280. Its totient is φ = 21118968.

The previous prime is 42256693. The next prime is 42256729. The reversal of 42256726 is 62765224.

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

It is a junction number, because it is equal to n+sod(n) for n = 42256691 and 42256700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42256729) 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 3 ways as a sum of consecutive naturals, for example, 4620 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (7926660).

Almost surely, 2^42256726 is an apocalyptic number.

42256726 is a deficient number, since it is larger than the sum of its proper divisors (21156554).

42256726 is a wasteful number, since it uses less digits than its factorization.

42256726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9398.

The product of its digits is 40320, while the sum is 34.

The square root of 42256726 is about 6500.5173640257. The cubic root of 42256726 is about 348.3094695057.

The spelling of 42256726 in words is "forty-two million, two hundred fifty-six thousand, seven hundred twenty-six".