1636164 has 36 divisors (see below), whose sum is σ = 4228224. Its totient is φ = 533232.

The previous prime is 1636157. The next prime is 1636181. The reversal of 1636164 is 4616361.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable 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, 1209 + ... + 2175.

2^1636164 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 1636164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2114112).

1636164 is an abundant number, since it is smaller than the sum of its proper divisors (2592060).

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

1636164 is a wasteful number, since it uses less digits than its factorization.

1636164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1019 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1636164 is about 1279.1262642914. The cubic root of 1636164 is about 117.8353540200.

The spelling of 1636164 in words is "one million, six hundred thirty-six thousand, one hundred sixty-four".