42236257 has 8 divisors (see below), whose sum is σ = 50368896. Its totient is φ = 34628352.

The previous prime is 42236251. The next prime is 42236287. The reversal of 42236257 is 75263224.

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

It is a cyclic number.

It is not a de Polignac number, because 42236257 - 2¹¹ = 42234209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42236251) 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, 131008 + ... + 131329.

It is an arithmetic number, because the mean of its divisors is an integer number (6296112).

Almost surely, 2^42236257 is an apocalyptic number.

It is an amenable number.

42236257 is a deficient number, since it is larger than the sum of its proper divisors (8132639).

42236257 is a wasteful number, since it uses less digits than its factorization.

42236257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262367.

The product of its digits is 20160, while the sum is 31.

The square root of 42236257 is about 6498.9427601726. The cubic root of 42236257 is about 348.2532204877.

The spelling of 42236257 in words is "forty-two million, two hundred thirty-six thousand, two hundred fifty-seven".