42235856 has 20 divisors (see below), whose sum is σ = 88127172. Its totient is φ = 19493376.

The previous prime is 42235819. The next prime is 42235901. The reversal of 42235856 is 65853224.

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 33825856 = 2900^2 + 5816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101321 + ... + 101736.

Almost surely, 2^42235856 is an apocalyptic number.

It is an amenable number.

42235856 is an abundant number, since it is smaller than the sum of its proper divisors (45891316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42235856 is a wasteful number, since it uses less digits than its factorization.

42235856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203078 (or 203072 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 42235856 is about 6498.9119089275. The cubic root of 42235856 is about 348.2521183542.

The spelling of 42235856 in words is "forty-two million, two hundred thirty-five thousand, eight hundred fifty-six".