42765906 has 8 divisors (see below), whose sum is σ = 85531824. Its totient is φ = 14255300.

The previous prime is 42765893. The next prime is 42765913. The reversal of 42765906 is 60956724.

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

42765906 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563820 + ... + 3563831.

It is an arithmetic number, because the mean of its divisors is an integer number (10691478).

Almost surely, 2^42765906 is an apocalyptic number.

42765906 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.

42765906 is a wasteful number, since it uses less digits than its factorization.

42765906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127656.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 42765906 is about 6539.5646644100. The cubic root of 42765906 is about 349.7028934430.

The spelling of 42765906 in words is "forty-two million, seven hundred sixty-five thousand, nine hundred six".