20200040004 has 24 divisors (see below), whose sum is σ = 47173986720. Its totient is φ = 6727552384.

The previous prime is 20200039973. The next prime is 20200040051. The reversal of 20200040004 is 40004000202.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 7 ways as a sum of consecutive naturals, for example, 709749 + ... + 737660.

It is an arithmetic number, because the mean of its divisors is an integer number (1965582780).

Almost surely, 2^20200040004 is an apocalyptic number.

It is an amenable number.

20200040004 is an abundant number, since it is smaller than the sum of its proper divisors (26973946716).

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

20200040004 is a wasteful number, since it uses less digits than its factorization.

20200040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448579 (or 1448577 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20200040004 its reverse (40004000202), we get a palindrome (60204040206).

The spelling of 20200040004 in words is "twenty billion, two hundred million, forty thousand, four".