42328188 has 144 divisors (see below), whose sum is σ = 130690560. Its totient is φ = 11290752.

The previous prime is 42328183. The next prime is 42328189. The reversal of 42328188 is 88182324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42328183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388278 + ... + 388386.

Almost surely, 2^42328188 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 42328188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65345280).

42328188 is an abundant number, since it is smaller than the sum of its proper divisors (88362372).

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

42328188 is a wasteful number, since it uses less digits than its factorization.

42328188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 211 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 42328188 is about 6506.0116815143. The cubic root of 42328188 is about 348.5057055097.

The spelling of 42328188 in words is "forty-two million, three hundred twenty-eight thousand, one hundred eighty-eight".