42636486 has 16 divisors (see below), whose sum is σ = 86882544. Its totient is φ = 13943904.

The previous prime is 42636463. The next prime is 42636487. The reversal of 42636486 is 68463624.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42636487) 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, 66721 + ... + 67356.

It is an arithmetic number, because the mean of its divisors is an integer number (5430159).

Almost surely, 2^42636486 is an apocalyptic number.

42636486 is an abundant number, since it is smaller than the sum of its proper divisors (44246058).

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

42636486 is a wasteful number, since it uses less digits than its factorization.

42636486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134135.

The product of its digits is 165888, while the sum is 39.

The square root of 42636486 is about 6529.6620126925. The cubic root of 42636486 is about 349.3497750826.

The spelling of 42636486 in words is "forty-two million, six hundred thirty-six thousand, four hundred eighty-six".