42256323 has 20 divisors (see below), whose sum is σ = 66448360. Its totient is φ = 26687232.

The previous prime is 42256321. The next prime is 42256327. The reversal of 42256323 is 32365224.

42256323 is a `hidden beast` number, since 4 + 2 + 25 + 632 + 3 = 666.

It is not a de Polignac number, because 42256323 - 2¹ = 42256321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42256321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12190 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (3322418).

Almost surely, 2^42256323 is an apocalyptic number.

42256323 is a deficient number, since it is larger than the sum of its proper divisors (24192037).

42256323 is a wasteful number, since it uses less digits than its factorization.

42256323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27488 (or 27479 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 42256323 is about 6500.4863664191. The cubic root of 42256323 is about 348.3083622329.

The spelling of 42256323 in words is "forty-two million, two hundred fifty-six thousand, three hundred twenty-three".