42819568 has 40 divisors (see below), whose sum is σ = 90994176. Its totient is φ = 19358400.

The previous prime is 42819551. The next prime is 42819571. The reversal of 42819568 is 86591824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38703 + ... + 39793.

Almost surely, 2^42819568 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 42819568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45497088).

42819568 is an abundant number, since it is smaller than the sum of its proper divisors (48174608).

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

42819568 is a wasteful number, since it uses less digits than its factorization.

42819568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1327 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 42819568 is about 6543.6662506580. Note that the first 3 decimals coincide. The cubic root of 42819568 is about 349.8490995754.

The spelling of 42819568 in words is "forty-two million, eight hundred nineteen thousand, five hundred sixty-eight".