20184182240 has 48 divisors (see below), whose sum is σ = 47712995568. Its totient is φ = 8068955136.

The previous prime is 20184182177. The next prime is 20184182251. The reversal of 20184182240 is 4228148102.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 20184182197 and 20184182206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244499 + ... + 316461.

It is an arithmetic number, because the mean of its divisors is an integer number (994020741).

Almost surely, 2^20184182240 is an apocalyptic number.

20184182240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20184182240 is an abundant number, since it is smaller than the sum of its proper divisors (27528813328).

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

20184182240 is a wasteful number, since it uses less digits than its factorization.

20184182240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73731 (or 73723 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 20184182240 in words is "twenty billion, one hundred eighty-four million, one hundred eighty-two thousand, two hundred forty".