42428886 has 16 divisors (see below), whose sum is σ = 85421568. Its totient is φ = 14049000.

The previous prime is 42428873. The next prime is 42428887. The reversal of 42428886 is 68882424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42428887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22510 + ... + 24321.

It is an arithmetic number, because the mean of its divisors is an integer number (5338848).

Almost surely, 2^42428886 is an apocalyptic number.

42428886 is an abundant number, since it is smaller than the sum of its proper divisors (42992682).

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

42428886 is a wasteful number, since it uses less digits than its factorization.

42428886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46987.

The product of its digits is 196608, while the sum is 42.

The square root of 42428886 is about 6513.7459268842. The cubic root of 42428886 is about 348.7818495854.

The spelling of 42428886 in words is "forty-two million, four hundred twenty-eight thousand, eight hundred eighty-six".