20334400430 has 24 divisors (see below), whose sum is σ = 37617923448. Its totient is φ = 7913923488.

The previous prime is 20334400423. The next prime is 20334400433. The reversal of 20334400430 is 3400443302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20334400396 and 20334400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334400433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728984 + ... + 756363.

It is an arithmetic number, because the mean of its divisors is an integer number (1567413477).

Almost surely, 2^20334400430 is an apocalyptic number.

20334400430 is a deficient number, since it is larger than the sum of its proper divisors (17283523018).

20334400430 is a wasteful number, since it uses less digits than its factorization.

20334400430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485428 (or 1485391 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20334400430 its reverse (3400443302), we get a palindrome (23734843732).

The spelling of 20334400430 in words is "twenty billion, three hundred thirty-four million, four hundred thousand, four hundred thirty".