20430374132 has 72 divisors (see below), whose sum is σ = 41720585088. Its totient is φ = 8574552000.

The previous prime is 20430374071. The next prime is 20430374177. The reversal of 20430374132 is 23147303402.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20430374095 and 20430374104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32377457 + ... + 32378087.

Almost surely, 2^20430374132 is an apocalyptic number.

It is an amenable number.

20430374132 is an abundant number, since it is smaller than the sum of its proper divisors (21290210956).

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

20430374132 is a wasteful number, since it uses less digits than its factorization.

20430374132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 20430374132 its reverse (23147303402), we get a palindrome (43577677534).

The spelling of 20430374132 in words is "twenty billion, four hundred thirty million, three hundred seventy-four thousand, one hundred thirty-two".