42336636 has 72 divisors (see below), whose sum is σ = 108173520. Its totient is φ = 12870144.

The previous prime is 42336601. The next prime is 42336643. The reversal of 42336636 is 63663324.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42336597 and 42336606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125460 + ... + 125796.

It is an arithmetic number, because the mean of its divisors is an integer number (1502410).

Almost surely, 2^42336636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42336636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54086760).

42336636 is an abundant number, since it is smaller than the sum of its proper divisors (65836884).

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

42336636 is a wasteful number, since it uses less digits than its factorization.

42336636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 390 counting only the distinct ones).

The product of its digits is 46656, while the sum is 33.

The square root of 42336636 is about 6506.6608948062. The cubic root of 42336636 is about 348.5288892752.

The spelling of 42336636 in words is "forty-two million, three hundred thirty-six thousand, six hundred thirty-six".