20348872432 has 160 divisors (see below), whose sum is σ = 49946803200. Its totient is φ = 7825281024.

The previous prime is 20348872429. The next prime is 20348872433. The reversal of 20348872432 is 23427884302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348872433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18348294 + ... + 18349402.

It is an arithmetic number, because the mean of its divisors is an integer number (312167520).

Almost surely, 2^20348872432 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 20348872432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24973401600).

20348872432 is an abundant number, since it is smaller than the sum of its proper divisors (29597930768).

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

20348872432 is a wasteful number, since it uses less digits than its factorization.

20348872432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 20348872432 in words is "twenty billion, three hundred forty-eight million, eight hundred seventy-two thousand, four hundred thirty-two".