20000420184 has 16 divisors (see below), whose sum is σ = 50001050520. Its totient is φ = 6666806720.

The previous prime is 20000420173. The next prime is 20000420213. The reversal of 20000420184 is 48102400002.

It is a self number, because there is not a number n which added to its sum of digits gives 20000420184.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416675397 + ... + 416675444.

Almost surely, 2^20000420184 is an apocalyptic number.

20000420184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20000420184 is an abundant number, since it is smaller than the sum of its proper divisors (30000630336).

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

20000420184 is a wasteful number, since it uses less digits than its factorization.

20000420184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833350850 (or 833350846 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20000420184 its reverse (48102400002), we get a palindrome (68102820186).

The spelling of 20000420184 in words is "twenty billion, four hundred twenty thousand, one hundred eighty-four".