2831288 has 8 divisors (see below), whose sum is σ = 5308680. Its totient is φ = 1415640.

The previous prime is 2831273. The next prime is 2831293. The reversal of 2831288 is 8821382.

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, 176948 + ... + 176963.

It is an arithmetic number, because the mean of its divisors is an integer number (663585).

2^2831288 is an apocalyptic number.

It is an amenable number.

2831288 is a deficient number, since it is larger than the sum of its proper divisors (2477392).

2831288 is a wasteful number, since it uses less digits than its factorization.

2831288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353917 (or 353913 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 2831288 is about 1682.6431588427. The cubic root of 2831288 is about 141.4690214245.

It can be divided in two parts, 2 and 831288, that multiplied together give a triangular number (1662576 = T₁₈₂₃).

The spelling of 2831288 in words is "two million, eight hundred thirty-one thousand, two hundred eighty-eight".