42577686 has 12 divisors (see below), whose sum is σ = 92251692. Its totient is φ = 14192556.

The previous prime is 42577681. The next prime is 42577687. The reversal of 42577686 is 68677524.

42577686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42577686² = 3625718690229192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42577681) 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 5 ways as a sum of consecutive naturals, for example, 1182696 + ... + 1182731.

It is an arithmetic number, because the mean of its divisors is an integer number (7687641).

Almost surely, 2^42577686 is an apocalyptic number.

42577686 is an abundant number, since it is smaller than the sum of its proper divisors (49674006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42577686 is a wasteful number, since it uses less digits than its factorization.

42577686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365435 (or 2365432 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 42577686 is about 6525.1579291232. The cubic root of 42577686 is about 349.1891050478.

The spelling of 42577686 in words is "forty-two million, five hundred seventy-seven thousand, six hundred eighty-six".