20333340432 has 60 divisors (see below), whose sum is σ = 56914690560. Its totient is φ = 6776639424.

The previous prime is 20333340427. The next prime is 20333340439. The reversal of 20333340432 is 23404333302.

It is a junction number, because it is equal to n+sod(n) for n = 20333340396 and 20333340405.

It is not an unprimeable number, because it can be changed into a prime (20333340439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1698853 + ... + 1710779.

It is an arithmetic number, because the mean of its divisors is an integer number (948578176).

Almost surely, 2^20333340432 is an apocalyptic number.

It is an amenable number.

20333340432 is an abundant number, since it is smaller than the sum of its proper divisors (36581350128).

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

20333340432 is a wasteful number, since it uses less digits than its factorization.

20333340432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23780 (or 23771 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 27.

Adding to 20333340432 its reverse (23404333302), we get a palindrome (43737673734).

The spelling of 20333340432 in words is "twenty billion, three hundred thirty-three million, three hundred forty thousand, four hundred thirty-two".