2831290 has 32 divisors (see below), whose sum is σ = 6355584. Its totient is φ = 882240.

The previous prime is 2831273. The next prime is 2831293. The reversal of 2831290 is 921382.

It is not an unprimeable number, because it can be changed into a prime (2831293) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1069 + ... + 2608.

It is an arithmetic number, because the mean of its divisors is an integer number (198612).

2^2831290 is an apocalyptic number.

2831290 is an abundant number, since it is smaller than the sum of its proper divisors (3524294).

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

2831290 is a wasteful number, since it uses less digits than its factorization.

2831290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2831290 is about 1682.6437531456. The cubic root of 2831290 is about 141.4690547353.

The spelling of 2831290 in words is "two million, eight hundred thirty-one thousand, two hundred ninety".