2168645382 has 24 divisors (see below), whose sum is σ = 4699666296. Its totient is φ = 722738016.

The previous prime is 2168645333. The next prime is 2168645419. The reversal of 2168645382 is 2835468612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120793 + ... + 137579.

It is an arithmetic number, because the mean of its divisors is an integer number (195819429).

Almost surely, 2^2168645382 is an apocalyptic number.

2168645382 is an abundant number, since it is smaller than the sum of its proper divisors (2531020914).

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

2168645382 is a wasteful number, since it uses less digits than its factorization.

2168645382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972 (or 23969 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 2168645382 is about 46568.7167742466. The cubic root of 2168645382 is about 1294.3831395730.

The spelling of 2168645382 in words is "two billion, one hundred sixty-eight million, six hundred forty-five thousand, three hundred eighty-two".