20132403432 has 64 divisors (see below), whose sum is σ = 52098076800. Its totient is φ = 6475472640.

The previous prime is 20132403419. The next prime is 20132403437. The reversal of 20132403432 is 23430423102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20132403437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1277682 + ... + 1293342.

It is an arithmetic number, because the mean of its divisors is an integer number (814032450).

Almost surely, 2^20132403432 is an apocalyptic number.

It is an amenable number.

20132403432 is an abundant number, since it is smaller than the sum of its proper divisors (31965673368).

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

20132403432 is a wasteful number, since it uses less digits than its factorization.

20132403432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17546 (or 17542 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20132403432 its reverse (23430423102), we get a palindrome (43562826534).

The spelling of 20132403432 in words is "twenty billion, one hundred thirty-two million, four hundred three thousand, four hundred thirty-two".