42880656 has 80 divisors (see below), whose sum is σ = 136352384. Its totient is φ = 11308032.

The previous prime is 42880631. The next prime is 42880667. The reversal of 42880656 is 65608824.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 541 + ... + 9276.

Almost surely, 2^42880656 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 42880656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68176192).

42880656 is an abundant number, since it is smaller than the sum of its proper divisors (93471728).

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

42880656 is a wasteful number, since it uses less digits than its factorization.

42880656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848 (or 9842 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 42880656 is about 6548.3323067786. The cubic root of 42880656 is about 350.0153897995.

The spelling of 42880656 in words is "forty-two million, eight hundred eighty thousand, six hundred fifty-six".