42534636 has 24 divisors (see below), whose sum is σ = 103563264. Its totient is φ = 13561680.

The previous prime is 42534601. The next prime is 42534637. The reversal of 42534636 is 63643524.

It is a junction number, because it is equal to n+sod(n) for n = 42534597 and 42534606.

It is not an unprimeable number, because it can be changed into a prime (42534637) 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 7 ways as a sum of consecutive naturals, for example, 76780 + ... + 77331.

It is an arithmetic number, because the mean of its divisors is an integer number (4315136).

Almost surely, 2^42534636 is an apocalyptic number.

42534636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42534636 is an abundant number, since it is smaller than the sum of its proper divisors (61028628).

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

42534636 is a wasteful number, since it uses less digits than its factorization.

42534636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154141 (or 154139 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 42534636 is about 6521.8583241282. The cubic root of 42534636 is about 349.0713778086.

The spelling of 42534636 in words is "forty-two million, five hundred thirty-four thousand, six hundred thirty-six".