42577636 has 6 divisors (see below), whose sum is σ = 74510870. Its totient is φ = 21288816.

The previous prime is 42577631. The next prime is 42577643. The reversal of 42577636 is 63677524.

42577636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 26625600 + 15952036 = 5160^2 + 3994^2 .

It is not an unprimeable number, because it can be changed into a prime (42577631) 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 as a sum of consecutive naturals, namely, 5322201 + ... + 5322208.

Almost surely, 2^42577636 is an apocalyptic number.

It is an amenable number.

42577636 is a deficient number, since it is larger than the sum of its proper divisors (31933234).

42577636 is a wasteful number, since it uses less digits than its factorization.

42577636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644413 (or 10644411 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 42577636 is about 6525.1540977972. The cubic root of 42577636 is about 349.1889683606.

The spelling of 42577636 in words is "forty-two million, five hundred seventy-seven thousand, six hundred thirty-six".