20369800 has 96 divisors (see below), whose sum is σ = 53032320. Its totient is φ = 7212800.

The previous prime is 20369773. The next prime is 20369801. The reversal of 20369800 is 896302.

It is not an unprimeable number, because it can be changed into a prime (20369801) 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 23 ways as a sum of consecutive naturals, for example, 103302 + ... + 103498.

It is an arithmetic number, because the mean of its divisors is an integer number (552420).

Almost surely, 2^20369800 is an apocalyptic number.

20369800 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 20369800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26516160).

20369800 is an abundant number, since it is smaller than the sum of its proper divisors (32662520).

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

20369800 is a wasteful number, since it uses less digits than its factorization.

20369800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20369800 is about 4513.2914818345. The cubic root of 20369800 is about 273.1045411769.

The spelling of 20369800 in words is "twenty million, three hundred sixty-nine thousand, eight hundred".