200020320 has 96 divisors (see below), whose sum is σ = 700086240. Its totient is φ = 53337600.

The previous prime is 200020319. The next prime is 200020361. The reversal of 200020320 is 23020002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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, 18831 + ... + 27470.

It is an arithmetic number, because the mean of its divisors is an integer number (7292565).

Almost surely, 2^200020320 is an apocalyptic number.

200020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020320 is an abundant number, since it is smaller than the sum of its proper divisors (500065920).

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

200020320 is a wasteful number, since it uses less digits than its factorization.

200020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46325 (or 46311 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 200020320 is about 14142.8540259737. The cubic root of 200020320 is about 584.8233523187.

Adding to 200020320 its reverse (23020002), we get a palindrome (223040322).

The spelling of 200020320 in words is "two hundred million, twenty thousand, three hundred twenty".