20366136 has 96 divisors (see below), whose sum is σ = 66774240. Its totient is φ = 5474304.

The previous prime is 20366123. The next prime is 20366147. The reversal of 20366136 is 63166302.

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, 7380 + ... + 9756.

It is an arithmetic number, because the mean of its divisors is an integer number (695565).

Almost surely, 2^20366136 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 20366136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33387120).

20366136 is an abundant number, since it is smaller than the sum of its proper divisors (46408104).

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

20366136 is a wasteful number, since it uses less digits than its factorization.

20366136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 20366136 is about 4512.8855513961. The cubic root of 20366136 is about 273.0881653813.

It can be divided in two parts, 20366 and 136, that added together give a palindrome (20502).

The spelling of 20366136 in words is "twenty million, three hundred sixty-six thousand, one hundred thirty-six".