2168938224 has 60 divisors (see below), whose sum is σ = 6234084376. Its totient is φ = 703437696.

The previous prime is 2168938207. The next prime is 2168938229. The reversal of 2168938224 is 4228398612.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2168938224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168938229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198214 + ... + 208869.

Almost surely, 2^2168938224 is an apocalyptic number.

2168938224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2168938224 is an abundant number, since it is smaller than the sum of its proper divisors (4065146152).

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

2168938224 is a wasteful number, since it uses less digits than its factorization.

2168938224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407134 (or 407125 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 2168938224 is about 46571.8608603951. The cubic root of 2168938224 is about 1294.4413990883.

The spelling of 2168938224 in words is "two billion, one hundred sixty-eight million, nine hundred thirty-eight thousand, two hundred twenty-four".