20472404260 has 96 divisors (see below), whose sum is σ = 53682838272. Its totient is φ = 6371205120.

The previous prime is 20472404257. The next prime is 20472404273. The reversal of 20472404260 is 6240427402.

It is a super-2 number, since 2×20472404260² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1026544 + ... + 1046296.

It is an arithmetic number, because the mean of its divisors is an integer number (559196232).

Almost surely, 2^20472404260 is an apocalyptic number.

20472404260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20472404260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26841419136).

20472404260 is an abundant number, since it is smaller than the sum of its proper divisors (33210434012).

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

20472404260 is a wasteful number, since it uses less digits than its factorization.

20472404260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20453 (or 20451 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 20472404260 in words is "twenty billion, four hundred seventy-two million, four hundred four thousand, two hundred sixty".