2168033440 has 96 divisors (see below), whose sum is σ = 5192812800. Its totient is φ = 855321600.

The previous prime is 2168033401. The next prime is 2168033471. The reversal of 2168033440 is 443308612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5030025 + ... + 5030455.

It is an arithmetic number, because the mean of its divisors is an integer number (54091800).

Almost surely, 2^2168033440 is an apocalyptic number.

2168033440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168033440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596406400).

2168033440 is an abundant number, since it is smaller than the sum of its proper divisors (3024779360).

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

2168033440 is a wasteful number, since it uses less digits than its factorization.

2168033440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2168033440 is about 46562.1459986543. The cubic root of 2168033440 is about 1294.2613797056.

The spelling of 2168033440 in words is "two billion, one hundred sixty-eight million, thirty-three thousand, four hundred forty".