42636576 has 24 divisors (see below), whose sum is σ = 111921264. Its totient is φ = 14212160.

The previous prime is 42636571. The next prime is 42636577. The reversal of 42636576 is 67563624.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×42636576² = 3635755226007552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42636571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221970 + ... + 222161.

It is an arithmetic number, because the mean of its divisors is an integer number (4663386).

Almost surely, 2^42636576 is an apocalyptic number.

It is an amenable number.

42636576 is an abundant number, since it is smaller than the sum of its proper divisors (69284688).

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

42636576 is a wasteful number, since it uses less digits than its factorization.

42636576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444144 (or 444136 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 42636576 is about 6529.6689043167. The cubic root of 42636576 is about 349.3500208928.

The spelling of 42636576 in words is "forty-two million, six hundred thirty-six thousand, five hundred seventy-six".