2391168 has 64 divisors (see below), whose sum is σ = 6854400. Its totient is φ = 734208.

The previous prime is 2391167. The next prime is 2391227. The reversal of 2391168 is 8611932.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (2391167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4753 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (107100).

2^2391168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2391168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3427200).

2391168 is an abundant number, since it is smaller than the sum of its proper divisors (4463232).

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

2391168 is a wasteful number, since it uses less digits than its factorization.

2391168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 497 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 2391168 is about 1546.3401954292. The cubic root of 2391168 is about 133.7221539258.

It can be divided in two parts, 2 and 391168, that added together give a triangular number (391170 = T₈₈₄).

The spelling of 2391168 in words is "two million, three hundred ninety-one thousand, one hundred sixty-eight".