21414300320 has 48 divisors (see below), whose sum is σ = 57818613888. Its totient is φ = 7342045440.

The previous prime is 21414300293. The next prime is 21414300329. The reversal of 21414300320 is 2300341412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21414300292 and 21414300301.

It is not an unprimeable number, because it can be changed into a prime (21414300329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9558836 + ... + 9561075.

It is an arithmetic number, because the mean of its divisors is an integer number (1204554456).

Almost surely, 2^21414300320 is an apocalyptic number.

21414300320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21414300320 is an abundant number, since it is smaller than the sum of its proper divisors (36404313568).

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

21414300320 is a wasteful number, since it uses less digits than its factorization.

21414300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19119933 (or 19119925 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21414300320 its reverse (2300341412), we get a palindrome (23714641732).

The spelling of 21414300320 in words is "twenty-one billion, four hundred fourteen million, three hundred thousand, three hundred twenty".