20201600 has 96 divisors (see below), whose sum is σ = 51224400. Its totient is φ = 7869440.

The previous prime is 20201563. The next prime is 20201651. The reversal of 20201600 is 610202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188747 + ... + 188853.

Almost surely, 2^20201600 is an apocalyptic number.

20201600 is a gapful number since it is divisible by the number (20) 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 20201600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25612200).

20201600 is an abundant number, since it is smaller than the sum of its proper divisors (31022800).

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

20201600 is a wasteful number, since it uses less digits than its factorization.

20201600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20201600 is about 4494.6190049881. The cubic root of 20201600 is about 272.3507585563.

Adding to 20201600 its reverse (610202), we get a palindrome (20811802).

The spelling of 20201600 in words is "twenty million, two hundred one thousand, six hundred".