42882780 has 96 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 11052288.

The previous prime is 42882779. The next prime is 42882803. The reversal of 42882780 is 8728824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393366 + ... + 393474.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 2^42882780 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 42882780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62092800).

42882780 is an abundant number, since it is smaller than the sum of its proper divisors (81302820).

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

42882780 is a wasteful number, since it uses less digits than its factorization.

42882780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 42882780 is about 6548.4944834672. The cubic root of 42882780 is about 350.0211687877.

The spelling of 42882780 in words is "forty-two million, eight hundred eighty-two thousand, seven hundred eighty".