2104168240 has 20 divisors (see below), whose sum is σ = 4892191344. Its totient is φ = 841667264.

The previous prime is 2104168237. The next prime is 2104168247. The reversal of 2104168240 is 428614012.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2104168199 and 2104168208.

It is not an unprimeable number, because it can be changed into a prime (2104168247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13150972 + ... + 13151131.

Almost surely, 2^2104168240 is an apocalyptic number.

2104168240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104168240 is an abundant number, since it is smaller than the sum of its proper divisors (2788023104).

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

2104168240 is a wasteful number, since it uses less digits than its factorization.

2104168240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26302116 (or 26302110 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 2104168240 is about 45871.2136312088. The cubic root of 2104168240 is about 1281.4258687318.

The spelling of 2104168240 in words is "two billion, one hundred four million, one hundred sixty-eight thousand, two hundred forty".