42576666 has 32 divisors (see below), whose sum is σ = 94177728. Its totient is φ = 12723840.

The previous prime is 42576659. The next prime is 42576707. The reversal of 42576666 is 66667524.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400 + ... + 9236.

It is an arithmetic number, because the mean of its divisors is an integer number (2943054).

Almost surely, 2^42576666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42576666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47088864).

42576666 is an abundant number, since it is smaller than the sum of its proper divisors (51601062).

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

42576666 is a wasteful number, since it uses less digits than its factorization.

42576666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926.

The product of its digits is 362880, while the sum is 42.

The square root of 42576666 is about 6525.0797696273. The cubic root of 42576666 is about 349.1863166096.

The spelling of 42576666 in words is "forty-two million, five hundred seventy-six thousand, six hundred sixty-six".