2288931 has 16 divisors (see below), whose sum is σ = 3321504. Its totient is φ = 1396224.

The previous prime is 2288929. The next prime is 2288939. The reversal of 2288931 is 1398822.

2288931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2288931 - 2¹ = 2288929 is a prime.

It is a super-2 number, since 2×2288931² = 10478410245522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2288892 and 2288901.

It is not an unprimeable number, because it can be changed into a prime (2288939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1281 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (207594).

2^2288931 is an apocalyptic number.

2288931 is a deficient number, since it is larger than the sum of its proper divisors (1032573).

2288931 is a wasteful number, since it uses less digits than its factorization.

2288931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its digits is 6912, while the sum is 33.

The square root of 2288931 is about 1512.9213462702. The cubic root of 2288931 is about 131.7885158045.

The spelling of 2288931 in words is "two million, two hundred eighty-eight thousand, nine hundred thirty-one".