20200223400 has 96 divisors (see below), whose sum is σ = 71566520640. Its totient is φ = 4617192960.

The previous prime is 20200223377. The next prime is 20200223401. The reversal of 20200223400 is 432200202.

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 20200223400.

It is not an unprimeable number, because it can be changed into a prime (20200223401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2400589 + ... + 2408988.

It is an arithmetic number, because the mean of its divisors is an integer number (745484590).

Almost surely, 2^20200223400 is an apocalyptic number.

20200223400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200223400 is an abundant number, since it is smaller than the sum of its proper divisors (51366297240).

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

20200223400 is a wasteful number, since it uses less digits than its factorization.

20200223400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809603 (or 4809594 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20200223400 its reverse (432200202), we get a palindrome (20632423602).

The spelling of 20200223400 in words is "twenty billion, two hundred million, two hundred twenty-three thousand, four hundred".