20371200 has 108 divisors (see below), whose sum is σ = 67292568. Its totient is φ = 5427200.

The previous prime is 20371199. The next prime is 20371213. The reversal of 20371200 is 217302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20371200.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18670 + ... + 19730.

Almost surely, 2^20371200 is an apocalyptic number.

20371200 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 20371200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33646284).

20371200 is an abundant number, since it is smaller than the sum of its proper divisors (46921368).

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

20371200 is a wasteful number, since it uses less digits than its factorization.

20371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20371200 is about 4513.4465766197. The cubic root of 20371200 is about 273.1107977855.

Adding to 20371200 its reverse (217302), we get a palindrome (20588502).

The spelling of 20371200 in words is "twenty million, three hundred seventy-one thousand, two hundred".