2981216 has 24 divisors (see below), whose sum is σ = 6708240. Its totient is φ = 1277568.

The previous prime is 2981189. The next prime is 2981221. The reversal of 2981216 is 6121892.

2981216 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

2981216 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6431 + ... + 6878.

It is an arithmetic number, because the mean of its divisors is an integer number (279510).

2^2981216 is an apocalyptic number.

It is an amenable number.

2981216 is an abundant number, since it is smaller than the sum of its proper divisors (3727024).

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

2981216 is a wasteful number, since it uses less digits than its factorization.

2981216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13326 (or 13318 counting only the distinct ones).

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

The square root of 2981216 is about 1726.6198191843. The cubic root of 2981216 is about 143.9233130772.

The spelling of 2981216 in words is "two million, nine hundred eighty-one thousand, two hundred sixteen".