42628785 has 16 divisors (see below), whose sum is σ = 68553600. Its totient is φ = 22619520.

The previous prime is 42628777. The next prime is 42628787. The reversal of 42628785 is 58782624.

It is a happy number.

42628785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42628785 - 2³ = 42628777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42628787) 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 15 ways as a sum of consecutive naturals, for example, 4156 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (4284600).

Almost surely, 2^42628785 is an apocalyptic number.

It is an amenable number.

42628785 is a deficient number, since it is larger than the sum of its proper divisors (25924815).

42628785 is a wasteful number, since it uses less digits than its factorization.

42628785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488.

The product of its digits is 215040, while the sum is 42.

The square root of 42628785 is about 6529.0722924471. The cubic root of 42628785 is about 349.3287406364.

The spelling of 42628785 in words is "forty-two million, six hundred twenty-eight thousand, seven hundred eighty-five".