42605783 has 8 divisors (see below), whose sum is σ = 46552320. Its totient is φ = 38671480.

The previous prime is 42605779. The next prime is 42605789. The reversal of 42605783 is 38750624.

It is a happy number.

42605783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42605783 - 2² = 42605779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42605789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216 + ... + 10602.

It is an arithmetic number, because the mean of its divisors is an integer number (5819040).

Almost surely, 2^42605783 is an apocalyptic number.

42605783 is a deficient number, since it is larger than the sum of its proper divisors (3946537).

42605783 is a wasteful number, since it uses less digits than its factorization.

42605783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42605783 is about 6527.3105487636. The cubic root of 42605783 is about 349.2658980808.

The spelling of 42605783 in words is "forty-two million, six hundred five thousand, seven hundred eighty-three".