42887232 has 70 divisors (see below), whose sum is σ = 127146558. Its totient is φ = 14294016.

The previous prime is 42887197. The next prime is 42887263. The reversal of 42887232 is 23278824.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 2742336 = 6336^2 + 1656^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1048 + ... + 9320.

Almost surely, 2^42887232 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 42887232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63573279).

42887232 is an abundant number, since it is smaller than the sum of its proper divisors (84259326).

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

42887232 is an equidigital number, since it uses as much as digits as its factorization.

42887232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297 (or 8278 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 42887232 is about 6548.8344001051. The cubic root of 42887232 is about 350.0332811890.

The spelling of 42887232 in words is "forty-two million, eight hundred eighty-seven thousand, two hundred thirty-two".