42170608 has 40 divisors (see below), whose sum is σ = 87061392. Its totient is φ = 19719168.

The previous prime is 42170599. The next prime is 42170627. The reversal of 42170608 is 80607124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53191 + ... + 53977.

Almost surely, 2^42170608 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 42170608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43530696).

42170608 is an abundant number, since it is smaller than the sum of its proper divisors (44890784).

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

42170608 is a wasteful number, since it uses less digits than its factorization.

42170608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 42170608 is about 6493.8900514253. The cubic root of 42170608 is about 348.0726936703.

It can be divided in two parts, 42170 and 608, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 42170608 in words is "forty-two million, one hundred seventy thousand, six hundred eight".