42880056 has 32 divisors (see below), whose sum is σ = 107360640. Its totient is φ = 14271968.

The previous prime is 42880051. The next prime is 42880063. The reversal of 42880056 is 65008824.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42879999 and 42880026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42880051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30685 + ... + 32051.

It is an arithmetic number, because the mean of its divisors is an integer number (3355020).

Almost surely, 2^42880056 is an apocalyptic number.

42880056 is the 4142-nd centered pentagonal number.

It is an amenable number.

42880056 is an abundant number, since it is smaller than the sum of its proper divisors (64480584).

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

42880056 is a wasteful number, since it uses less digits than its factorization.

42880056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 42880056 is about 6548.2864934271. The cubic root of 42880056 is about 350.0137572824.

The spelling of 42880056 in words is "forty-two million, eight hundred eighty thousand, fifty-six".