20434304354 has 8 divisors (see below), whose sum is σ = 31020751440. Its totient is φ = 10094053876.

The previous prime is 20434304309. The next prime is 20434304381. The reversal of 20434304354 is 45340343402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20434304354.

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 3 ways as a sum of consecutive naturals, for example, 61548944 + ... + 61549275.

It is an arithmetic number, because the mean of its divisors is an integer number (3877593930).

Almost surely, 2^20434304354 is an apocalyptic number.

20434304354 is a deficient number, since it is larger than the sum of its proper divisors (10586447086).

20434304354 is a wasteful number, since it uses less digits than its factorization.

20434304354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123098304.

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 20434304354 its reverse (45340343402), we get a palindrome (65774647756).

The spelling of 20434304354 in words is "twenty billion, four hundred thirty-four million, three hundred four thousand, three hundred fifty-four".