20458304432 has 20 divisors (see below), whose sum is σ = 40385852640. Its totient is φ = 10036148928.

The previous prime is 20458304429. The next prime is 20458304437. The reversal of 20458304432 is 23440385402.

It is a junction number, because it is equal to n+sod(n) for n = 20458304392 and 20458304401.

It is not an unprimeable number, because it can be changed into a prime (20458304437) 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 3 ways as a sum of consecutive naturals, for example, 12061832 + ... + 12063527.

It is an arithmetic number, because the mean of its divisors is an integer number (2019292632).

Almost surely, 2^20458304432 is an apocalyptic number.

It is an amenable number.

20458304432 is a deficient number, since it is larger than the sum of its proper divisors (19927548208).

20458304432 is a wasteful number, since it uses less digits than its factorization.

20458304432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24125420 (or 24125414 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 20458304432 its reverse (23440385402), we get a palindrome (43898689834).

The spelling of 20458304432 in words is "twenty billion, four hundred fifty-eight million, three hundred four thousand, four hundred thirty-two".