42636164 has 12 divisors (see below), whose sum is σ = 74660124. Its totient is φ = 21304704.

The previous prime is 42636163. The next prime is 42636193. The reversal of 42636164 is 46163624.

It can be written as a sum of positive squares in 2 ways, for example, as 25080064 + 17556100 = 5008^2 + 4190^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42636164.

It is not an unprimeable number, because it can be changed into a prime (42636163) 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, 8432 + ... + 12504.

It is an arithmetic number, because the mean of its divisors is an integer number (6221677).

Almost surely, 2^42636164 is an apocalyptic number.

It is an amenable number.

42636164 is a deficient number, since it is larger than the sum of its proper divisors (32023960).

42636164 is a wasteful number, since it uses less digits than its factorization.

42636164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694 (or 6692 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 42636164 is about 6529.6373559333. The cubic root of 42636164 is about 349.3488956252.

Adding to 42636164 its reverse (46163624), we get a palindrome (88799788).

The spelling of 42636164 in words is "forty-two million, six hundred thirty-six thousand, one hundred sixty-four".