2289290 has 8 divisors (see below), whose sum is σ = 4120740. Its totient is φ = 915712.

The previous prime is 2289281. The next prime is 2289349. The reversal of 2289290 is 929822.

2289290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2289169 + 121 = 1513^2 + 11^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 114455 + ... + 114474.

2^2289290 is an apocalyptic number.

2289290 is a deficient number, since it is larger than the sum of its proper divisors (1831450).

2289290 is a wasteful number, since it uses less digits than its factorization.

2289290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228936.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2289290 is about 1513.0399862528. The cubic root of 2289290 is about 131.7954054259.

The spelling of 2289290 in words is "two million, two hundred eighty-nine thousand, two hundred ninety".