42748056 has 96 divisors (see below), whose sum is σ = 126126000. Its totient is φ = 13001472.

The previous prime is 42748033. The next prime is 42748067. The reversal of 42748056 is 65084724.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42748056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101815 + ... + 102233.

Almost surely, 2^42748056 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 42748056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63063000).

42748056 is an abundant number, since it is smaller than the sum of its proper divisors (83377944).

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

42748056 is a wasteful number, since it uses less digits than its factorization.

42748056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 42748056 is about 6538.1997522254. The cubic root of 42748056 is about 349.6542326763.

The spelling of 42748056 in words is "forty-two million, seven hundred forty-eight thousand, fifty-six".