20343141440 has 56 divisors (see below), whose sum is σ = 48501312192. Its totient is φ = 8127311360.

The previous prime is 20343141431. The next prime is 20343141457. The reversal of 20343141440 is 4414134302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226205 + ... + 303075.

Almost surely, 2^20343141440 is an apocalyptic number.

20343141440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343141440 is an abundant number, since it is smaller than the sum of its proper divisors (28158170752).

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

20343141440 is an equidigital number, since it uses as much as digits as its factorization.

20343141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77715 (or 77705 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20343141440 its reverse (4414134302), we get a palindrome (24757275742).

The spelling of 20343141440 in words is "twenty billion, three hundred forty-three million, one hundred forty-one thousand, four hundred forty".