220343243403420 has 144 divisors (see below), whose sum is σ = 721483723920960. Its totient is φ = 54265442423808.

The previous prime is 220343243403401. The next prime is 220343243403461. The reversal of 220343243403420 is 24304342343022.

220343243403420 is a `hidden beast` number, since 2 + 2 + 0 + 3 + 4 + 3 + 243 + 403 + 4 + 2 + 0 = 666.

It is a super-2 number, since 2×220343243403420² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 917517969 + ... + 917758088.

It is an arithmetic number, because the mean of its divisors is an integer number (5010303638340).

Almost surely, 2^{220343243403420} is an apocalyptic number.

220343243403420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220343243403420 is an abundant number, since it is smaller than the sum of its proper divisors (501140480517540).

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

220343243403420 is a wasteful number, since it uses less digits than its factorization.

220343243403420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835276124 (or 1835276119 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

Adding to 220343243403420 its reverse (24304342343022), we get a palindrome (244647585746442).

The spelling of 220343243403420 in words is "two hundred twenty trillion, three hundred forty-three billion, two hundred forty-three million, four hundred three thousand, four hundred twenty".