20536208 has 80 divisors (see below), whose sum is σ = 50472960. Its totient is φ = 7862400.

The previous prime is 20536193. The next prime is 20536213. The reversal of 20536208 is 80263502.

It is a super-4 number, since 4×20536208⁴ (a number of 30 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97223 + ... + 97433.

It is an arithmetic number, because the mean of its divisors is an integer number (630912).

Almost surely, 2^20536208 is an apocalyptic number.

20536208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20536208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25236480).

20536208 is an abundant number, since it is smaller than the sum of its proper divisors (29936752).

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

20536208 is a wasteful number, since it uses less digits than its factorization.

20536208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20536208 is about 4531.6893097387. The cubic root of 20536208 is about 273.8462205627.

The spelling of 20536208 in words is "twenty million, five hundred thirty-six thousand, two hundred eight".