42774585 has 16 divisors (see below), whose sum is σ = 78216576. Its totient is φ = 19554048.

The previous prime is 42774581. The next prime is 42774593. The reversal of 42774585 is 58547724.

It is not a de Polignac number, because 42774585 - 2² = 42774581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42774581) 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 in 15 ways as a sum of consecutive naturals, for example, 203584 + ... + 203793.

It is an arithmetic number, because the mean of its divisors is an integer number (4888536).

Almost surely, 2^42774585 is an apocalyptic number.

It is an amenable number.

42774585 is a deficient number, since it is larger than the sum of its proper divisors (35441991).

42774585 is a wasteful number, since it uses less digits than its factorization.

42774585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407392.

The product of its digits is 313600, while the sum is 42.

The square root of 42774585 is about 6540.2282070276. The cubic root of 42774585 is about 349.7265483152.

The spelling of 42774585 in words is "forty-two million, seven hundred seventy-four thousand, five hundred eighty-five".