20023433450 has 48 divisors (see below), whose sum is σ = 37569946560. Its totient is φ = 7939451520.

The previous prime is 20023433429. The next prime is 20023433483. The reversal of 20023433450 is 5433432002.

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 23 ways as a sum of consecutive naturals, for example, 3330347 + ... + 3336353.

It is an arithmetic number, because the mean of its divisors is an integer number (782707220).

Almost surely, 2^20023433450 is an apocalyptic number.

20023433450 is a deficient number, since it is larger than the sum of its proper divisors (17546513110).

20023433450 is a wasteful number, since it uses less digits than its factorization.

20023433450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591 (or 6586 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 20023433450 its reverse (5433432002), we get a palindrome (25456865452).

The spelling of 20023433450 in words is "twenty billion, twenty-three million, four hundred thirty-three thousand, four hundred fifty".