20352200 has 108 divisors (see below), whose sum is σ = 53866995. Its totient is φ = 7145600.

The previous prime is 20352191. The next prime is 20352203. The reversal of 20352200 is 225302.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 7806436 + 12545764 = 2794^2 + 3542^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3190.

It is not an unprimeable number, because it can be changed into a prime (20352203) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 701786 + ... + 701814.

Almost surely, 2^20352200 is an apocalyptic number.

20352200 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 20352200

20352200 is an abundant number, since it is smaller than the sum of its proper divisors (33514795).

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

20352200 is a wasteful number, since it uses less digits than its factorization.

20352200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20352200 is about 4511.3412639702. The cubic root of 20352200 is about 273.0258622021.

Adding to 20352200 its reverse (225302), we get a palindrome (20577502).

The spelling of 20352200 in words is "twenty million, three hundred fifty-two thousand, two hundred".