636462 has 24 divisors (see below), whose sum is σ = 1452360. Its totient is φ = 200880.

The previous prime is 636421. The next prime is 636469. The reversal of 636462 is 264636.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636462.

It is not an unprimeable number, because it can be changed into a prime (636469) by changing a digit.

636462 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 589 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (60515).

2⁶³⁶⁴⁶² is an apocalyptic number.

636462 is an abundant number, since it is smaller than the sum of its proper divisors (815898).

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

636462 is a wasteful number, since it uses less digits than its factorization.

636462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 1885 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 636462 is about 797.7856855071. The cubic root of 636462 is about 86.0182942873.

The spelling of 636462 in words is "six hundred thirty-six thousand, four hundred sixty-two".