20300343400 has 96 divisors (see below), whose sum is σ = 48923475840. Its totient is φ = 7828508160.

The previous prime is 20300343383. The next prime is 20300343409. The reversal of 20300343400 is 434300302.

It is not an unprimeable number, because it can be changed into a prime (20300343409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613684 + ... + 645916.

It is an arithmetic number, because the mean of its divisors is an integer number (509619540).

Almost surely, 2^20300343400 is an apocalyptic number.

20300343400 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 20300343400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24461737920).

20300343400 is an abundant number, since it is smaller than the sum of its proper divisors (28623132440).

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

20300343400 is a wasteful number, since it uses less digits than its factorization.

20300343400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32363 (or 32354 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20300343400 its reverse (434300302), we get a palindrome (20734643702).

The spelling of 20300343400 in words is "twenty billion, three hundred million, three hundred forty-three thousand, four hundred".