20434323343304 has 32 divisors (see below), whose sum is σ = 41270823510840. Its totient is φ = 9429121228800.

The previous prime is 20434323343241. The next prime is 20434323343307. The reversal of 20434323343304 is 40334332343402.

It can be written as a sum of positive squares in 4 ways, for example, as 9888521738404 + 10545801604900 = 3144602^2 + 3247430^2 .

It is not an unprimeable number, because it can be changed into a prime (20434323343307) 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, 21458087 + ... + 22390134.

Almost surely, 2^{20434323343304} is an apocalyptic number.

It is an amenable number.

20434323343304 is an abundant number, since it is smaller than the sum of its proper divisors (20836500167536).

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

20434323343304 is a wasteful number, since it uses less digits than its factorization.

20434323343304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43852721 (or 43852717 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 38.

Adding to 20434323343304 its reverse (40334332343402), we get a palindrome (60768655686706).

The spelling of 20434323343304 in words is "twenty trillion, four hundred thirty-four billion, three hundred twenty-three million, three hundred forty-three thousand, three hundred four".