42568544 has 36 divisors (see below), whose sum is σ = 89045964. Its totient is φ = 20027904.

The previous prime is 42568543. The next prime is 42568583. The reversal of 42568544 is 44586524.

It is a junction number, because it is equal to n+sod(n) for n = 42568498 and 42568507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42568543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6947 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (2473499).

Almost surely, 2^42568544 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 42568544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44522982).

42568544 is an abundant number, since it is smaller than the sum of its proper divisors (46477420).

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

42568544 is a wasteful number, since it uses less digits than its factorization.

42568544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647 (or 4622 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 42568544 is about 6524.4573720732. The cubic root of 42568544 is about 349.1641113981.

The spelling of 42568544 in words is "forty-two million, five hundred sixty-eight thousand, five hundred forty-four".