42568428 has 48 divisors (see below), whose sum is σ = 114248960. Its totient is φ = 12083904.

The previous prime is 42568411. The next prime is 42568429. The reversal of 42568428 is 82486524.

It is not an unprimeable number, because it can be changed into a prime (42568429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12138 + ... + 15246.

Almost surely, 2^42568428 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 42568428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57124480).

42568428 is an abundant number, since it is smaller than the sum of its proper divisors (71680532).

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

42568428 is a wasteful number, since it uses less digits than its factorization.

42568428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286 (or 3284 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 42568428 is about 6524.4484824390. The cubic root of 42568428 is about 349.1637942384.

The spelling of 42568428 in words is "forty-two million, five hundred sixty-eight thousand, four hundred twenty-eight".