20040000000 has 320 divisors, whose sum is σ = 67134203136. Its totient is φ = 5312000000.

The previous prime is 20039999957. The next prime is 20040000031. The reversal of 20040000000 is 4002.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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, 119999917 + ... + 120000083.

Almost surely, 2^20040000000 is an apocalyptic number.

20040000000 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 20040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33567101568).

20040000000 is an abundant number, since it is smaller than the sum of its proper divisors (47094203136).

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

20040000000 is an frugal number, since it uses more digits than its factorization.

20040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 6.

Adding to 20040000000 its reverse (4002), we get a palindrome (20040004002).

It can be divided in two parts, 200 and 40000000, that multiplied together give a cube (8000000000 = 2000³).

The spelling of 20040000000 in words is "twenty billion, forty million", and thus it is an aban number and an uban number.