2921168 has 40 divisors (see below), whose sum is σ = 5973576. Its totient is φ = 1382400.

The previous prime is 2921147. The next prime is 2921173. The reversal of 2921168 is 8611292.

It can be written as a sum of positive squares in 4 ways, for example, as 71824 + 2849344 = 268^2 + 1688^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2921168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39980 + ... + 40052.

2^2921168 is an apocalyptic number.

It is an amenable number.

2921168 is an abundant number, since it is smaller than the sum of its proper divisors (3052408).

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

2921168 is a wasteful number, since it uses less digits than its factorization.

2921168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 177 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 2921168 is about 1709.1424750441. The cubic root of 2921168 is about 142.9504449545.

It can be divided in two parts, 292 and 1168, that multiplied together give a square (341056 = 584²).

The spelling of 2921168 in words is "two million, nine hundred twenty-one thousand, one hundred sixty-eight".