42318256 has 10 divisors (see below), whose sum is σ = 81991652. Its totient is φ = 21159120.

The previous prime is 42318247. The next prime is 42318313. The reversal of 42318256 is 65281324.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322430 + ... + 1322461.

Almost surely, 2^42318256 is an apocalyptic number.

It is an amenable number.

42318256 is a deficient number, since it is larger than the sum of its proper divisors (39673396).

42318256 is a wasteful number, since it uses less digits than its factorization.

42318256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644899 (or 2644893 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 42318256 is about 6505.2483426845. The cubic root of 42318256 is about 348.4784452717.

The spelling of 42318256 in words is "forty-two million, three hundred eighteen thousand, two hundred fifty-six".