636048 has 60 divisors (see below), whose sum is σ = 2037568. Its totient is φ = 181440.

The previous prime is 636043. The next prime is 636059. The reversal of 636048 is 840636.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636048.

It is not an unprimeable number, because it can be changed into a prime (636043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 693 + ... + 1323.

2⁶³⁶⁰⁴⁸ 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 636048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018784).

636048 is an abundant number, since it is smaller than the sum of its proper divisors (1401520).

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

636048 is a wasteful number, since it uses less digits than its factorization.

636048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 636048 is about 797.5261751190. The cubic root of 636048 is about 85.9996394432. Note that the first 3 decimals are identical.

The spelling of 636048 in words is "six hundred thirty-six thousand, forty-eight".