20122452432 has 80 divisors (see below), whose sum is σ = 57972360960. Its totient is φ = 6682694400.

The previous prime is 20122452391. The next prime is 20122452463. The reversal of 20122452432 is 23425422102.

20122452432 is a `hidden beast` number, since 2 + 0 + 1 + 224 + 5 + 2 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20122452396 and 20122452405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31132 + ... + 203012.

It is an arithmetic number, because the mean of its divisors is an integer number (724654512).

Almost surely, 2^20122452432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122452432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28986180480).

20122452432 is an abundant number, since it is smaller than the sum of its proper divisors (37849908528).

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

20122452432 is a wasteful number, since it uses less digits than its factorization.

20122452432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172169 (or 172157 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20122452432 its reverse (23425422102), we get a palindrome (43547874534).

The spelling of 20122452432 in words is "twenty billion, one hundred twenty-two million, four hundred fifty-two thousand, four hundred thirty-two".