42530766 has 8 divisors (see below), whose sum is σ = 85061544. Its totient is φ = 14176920.

The previous prime is 42530743. The next prime is 42530779. The reversal of 42530766 is 66703524.

It is a sphenic number, since it is the product of 3 distinct primes.

42530766 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3544225 + ... + 3544236.

It is an arithmetic number, because the mean of its divisors is an integer number (10632693).

Almost surely, 2^42530766 is an apocalyptic number.

42530766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42530766 is a wasteful number, since it uses less digits than its factorization.

42530766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088466.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 42530766 is about 6521.5616228017. The cubic root of 42530766 is about 349.0607907723.

The spelling of 42530766 in words is "forty-two million, five hundred thirty thousand, seven hundred sixty-six".