42730766 has 8 divisors (see below), whose sum is σ = 69026664. Its totient is φ = 19721880.

The previous prime is 42730747. The next prime is 42730783. The reversal of 42730766 is 66703724.

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

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, 821720 + ... + 821771.

It is an arithmetic number, because the mean of its divisors is an integer number (8628333).

Almost surely, 2^42730766 is an apocalyptic number.

42730766 is a deficient number, since it is larger than the sum of its proper divisors (26295898).

42730766 is a wasteful number, since it uses less digits than its factorization.

42730766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643506.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 42730766 is about 6536.8773890903. The cubic root of 42730766 is about 349.6070856050.

The spelling of 42730766 in words is "forty-two million, seven hundred thirty thousand, seven hundred sixty-six".