20040684576 has 384 divisors, whose sum is σ = 63355944960. Its totient is φ = 5481907200.

The previous prime is 20040684539. The next prime is 20040684649. The reversal of 20040684576 is 67548604002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32375595 + ... + 32376213.

It is an arithmetic number, because the mean of its divisors is an integer number (164989440).

Almost surely, 2^20040684576 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 20040684576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31677972480).

20040684576 is an abundant number, since it is smaller than the sum of its proper divisors (43315260384).

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

20040684576 is a wasteful number, since it uses less digits than its factorization.

20040684576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 20040684576 in words is "twenty billion, forty million, six hundred eighty-four thousand, five hundred seventy-six".