20488004460 has 576 divisors, whose sum is σ = 82819376640. Its totient is φ = 4155701760.

The previous prime is 20488004447. The next prime is 20488004527. The reversal of 20488004460 is 6440088402.

20488004460 is a `hidden beast` number, since 204 + 8 + 8 + 0 + 0 + 446 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12514762 + ... + 12516398.

It is an arithmetic number, because the mean of its divisors is an integer number (143783640).

Almost surely, 2^20488004460 is an apocalyptic number.

20488004460 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 20488004460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41409688320).

20488004460 is an abundant number, since it is smaller than the sum of its proper divisors (62331372180).

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

20488004460 is a wasteful number, since it uses less digits than its factorization.

20488004460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20488004460 in words is "twenty billion, four hundred eighty-eight million, four thousand, four hundred sixty".