20364606 has 48 divisors (see below), whose sum is σ = 47528208. Its totient is φ = 6278400.

The previous prime is 20364571. The next prime is 20364649. The reversal of 20364606 is 60646302.

20364606 is a `hidden beast` number, since 20 + 36 + 4 + 606 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20364606.

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, 18121 + ... + 19211.

It is an arithmetic number, because the mean of its divisors is an integer number (990171).

Almost surely, 2^20364606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20364606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23764104).

20364606 is an abundant number, since it is smaller than the sum of its proper divisors (27163602).

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

20364606 is a wasteful number, since it uses less digits than its factorization.

20364606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1174 counting only the distinct ones).

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

The square root of 20364606 is about 4512.7160336099. The cubic root of 20364606 is about 273.0813266539.

The spelling of 20364606 in words is "twenty million, three hundred sixty-four thousand, six hundred six".