42785044 has 6 divisors (see below), whose sum is σ = 74873834. Its totient is φ = 21392520.

The previous prime is 42785027. The next prime is 42785047. The reversal of 42785044 is 44058724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 6061444 = 6060^2 + 2462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42785047) by changing a digit.

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 as a sum of consecutive naturals, namely, 5348127 + ... + 5348134.

Almost surely, 2^42785044 is an apocalyptic number.

It is an amenable number.

42785044 is a deficient number, since it is larger than the sum of its proper divisors (32088790).

42785044 is a wasteful number, since it uses less digits than its factorization.

42785044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696265 (or 10696263 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 42785044 is about 6541.0277479919. The cubic root of 42785044 is about 349.7550503792.

The spelling of 42785044 in words is "forty-two million, seven hundred eighty-five thousand, forty-four".