42656832 has 84 divisors (see below), whose sum is σ = 123626880. Its totient is φ = 14061312.

The previous prime is 42656827. The next prime is 42656833. The reversal of 42656832 is 23865624.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42656833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58969 + ... + 59687.

Almost surely, 2^42656832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42656832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61813440).

42656832 is an abundant number, since it is smaller than the sum of its proper divisors (80970048).

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

42656832 is a wasteful number, since it uses less digits than its factorization.

42656832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 827 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42656832 is about 6531.2197941885. The cubic root of 42656832 is about 349.4053357918.

The spelling of 42656832 in words is "forty-two million, six hundred fifty-six thousand, eight hundred thirty-two".