42873728 has 96 divisors (see below), whose sum is σ = 97073400. Its totient is φ = 18800640.

The previous prime is 42873689. The next prime is 42873731. The reversal of 42873728 is 82737824.

Its product of digits (150528) is a multiple of the sum of its prime factors (128).

It is a congruent number.

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, 702818 + ... + 702878.

Almost surely, 2^42873728 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 42873728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48536700).

42873728 is an abundant number, since it is smaller than the sum of its proper divisors (54199672).

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

42873728 is a wasteful number, since it uses less digits than its factorization.

42873728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 99 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 42873728 is about 6547.8032957626. The cubic root of 42873728 is about 349.9965387413.

The spelling of 42873728 in words is "forty-two million, eight hundred seventy-three thousand, seven hundred twenty-eight".