42066608 has 30 divisors (see below), whose sum is σ = 86031324. Its totient is φ = 19923552.

The previous prime is 42066593. The next prime is 42066643. The reversal of 42066608 is 80666024.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2135 + ... + 9417.

Almost surely, 2^42066608 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 42066608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43015662).

42066608 is an abundant number, since it is smaller than the sum of its proper divisors (43964716).

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

42066608 is a wasteful number, since it uses less digits than its factorization.

42066608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7329 (or 7304 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 42066608 is about 6485.8775813301. The cubic root of 42066608 is about 347.7863223418.

The spelling of 42066608 in words is "forty-two million, sixty-six thousand, six hundred eight".