42017500 has 90 divisors (see below), whose sum is σ = 107196936. Its totient is φ = 14406000.

The previous prime is 42017449. The next prime is 42017513. The reversal of 42017500 is 571024.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6002497 + ... + 6002503.

Almost surely, 2^42017500 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 42017500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53598468).

42017500 is an abundant number, since it is smaller than the sum of its proper divisors (65179436).

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

42017500 is an frugal number, since it uses more digits than its factorization.

42017500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 42017500 is about 6482.0907121082. The cubic root of 42017500 is about 347.6509359327.

Adding to 42017500 its reverse (571024), we get a palindrome (42588524).

The spelling of 42017500 in words is "forty-two million, seventeen thousand, five hundred".