42828750 has 140 divisors (see below), whose sum is σ = 122923152. Its totient is φ = 11178000.

The previous prime is 42828733. The next prime is 42828767. The reversal of 42828750 is 5782824.

It is a happy number.

42828750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42828733) and next prime (42828767).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 911227 + ... + 911273.

Almost surely, 2^42828750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42828750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61461576).

42828750 is an abundant number, since it is smaller than the sum of its proper divisors (80094402).

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

42828750 is an frugal number, since it uses more digits than its factorization.

42828750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 42828750 is about 6544.3678075120. The cubic root of 42828750 is about 349.8741043804.

The spelling of 42828750 in words is "forty-two million, eight hundred twenty-eight thousand, seven hundred fifty".