42331536 has 60 divisors (see below), whose sum is σ = 127588188. Its totient is φ = 13024512.

The previous prime is 42331519. The next prime is 42331559. The reversal of 42331536 is 63513324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11861136 + 30470400 = 3444^2 + 5520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9435 + ... + 13178.

Almost surely, 2^42331536 is an apocalyptic number.

It is an amenable number.

42331536 is an abundant number, since it is smaller than the sum of its proper divisors (85256652).

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

42331536 is a wasteful number, since it uses less digits than its factorization.

42331536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22640 (or 22631 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 42331536 is about 6506.2689769176. The cubic root of 42331536 is about 348.5148937630.

The spelling of 42331536 in words is "forty-two million, three hundred thirty-one thousand, five hundred thirty-six".