42499188 has 48 divisors (see below), whose sum is σ = 112006720. Its totient is φ = 13932000.

The previous prime is 42499169. The next prime is 42499189. The reversal of 42499188 is 88199424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42499189) 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, 3363 + ... + 9813.

Almost surely, 2^42499188 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 42499188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56003360).

42499188 is an abundant number, since it is smaller than the sum of its proper divisors (69507532).

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

42499188 is a wasteful number, since it uses less digits than its factorization.

42499188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6525 (or 6517 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 42499188 is about 6519.1401273481. The cubic root of 42499188 is about 348.9743798293.

The spelling of 42499188 in words is "forty-two million, four hundred ninety-nine thousand, one hundred eighty-eight".