2831128 has 8 divisors (see below), whose sum is σ = 5308380. Its totient is φ = 1415560.

The previous prime is 2831089. The next prime is 2831141. The reversal of 2831128 is 8211382.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176938 + ... + 176953.

2^2831128 is an apocalyptic number.

It is an amenable number.

2831128 is a deficient number, since it is larger than the sum of its proper divisors (2477252).

2831128 is a wasteful number, since it uses less digits than its factorization.

2831128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353897 (or 353893 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 2831128 is about 1682.5956139251. The cubic root of 2831128 is about 141.4663565043.

The spelling of 2831128 in words is "two million, eight hundred thirty-one thousand, one hundred twenty-eight".