2881172 has 24 divisors (see below), whose sum is σ = 5898816. Its totient is φ = 1205568.

The previous prime is 2881169. The next prime is 2881181. The reversal of 2881172 is 2711882.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (245784).

2^2881172 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 2881172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949408).

2881172 is an abundant number, since it is smaller than the sum of its proper divisors (3017644).

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

2881172 is a wasteful number, since it uses less digits than its factorization.

2881172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2445 counting only the distinct ones).

The product of its digits is 1792, while the sum is 29.

The square root of 2881172 is about 1697.4015435365. The cubic root of 2881172 is about 142.2950290019.

The spelling of 2881172 in words is "two million, eight hundred eighty-one thousand, one hundred seventy-two".