42188454 has 96 divisors (see below), whose sum is σ = 116064000. Its totient is φ = 10756800.

The previous prime is 42188453. The next prime is 42188459. The reversal of 42188454 is 45488124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42188453) 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, 84297 + ... + 84795.

It is an arithmetic number, because the mean of its divisors is an integer number (1209000).

Almost surely, 2^42188454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42188454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58032000).

42188454 is an abundant number, since it is smaller than the sum of its proper divisors (73875546).

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

42188454 is a wasteful number, since it uses less digits than its factorization.

42188454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 583 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 42188454 is about 6495.2639669224. The cubic root of 42188454 is about 348.1217865461.

The spelling of 42188454 in words is "forty-two million, one hundred eighty-eight thousand, four hundred fifty-four".