42657832 has 24 divisors (see below), whose sum is σ = 93042810. Its totient is φ = 18281760.

The previous prime is 42657817. The next prime is 42657833. The reversal of 42657832 is 23875624.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 7918596 = 5894^2 + 2814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42657791 and 42657800.

It is not an unprimeable number, because it can be changed into a prime (42657833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54019 + ... + 54802.

Almost surely, 2^42657832 is an apocalyptic number.

It is an amenable number.

42657832 is an abundant number, since it is smaller than the sum of its proper divisors (50384978).

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

42657832 is a wasteful number, since it uses less digits than its factorization.

42657832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108841 (or 108830 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 42657832 is about 6531.2963491178. The cubic root of 42657832 is about 349.4080661290.

The spelling of 42657832 in words is "forty-two million, six hundred fifty-seven thousand, eight hundred thirty-two".