2289465 has 20 divisors (see below), whose sum is σ = 4104804. Its totient is φ = 1220832.

The previous prime is 2289461. The next prime is 2289467. The reversal of 2289465 is 5649822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 962361 = 1152^2 + 981^2 .

It is not a de Polignac number, because 2289465 - 2² = 2289461 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

2289465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2289461) 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 19 ways as a sum of consecutive naturals, for example, 2422 + ... + 3231.

2^2289465 is an apocalyptic number.

It is an amenable number.

2289465 is a deficient number, since it is larger than the sum of its proper divisors (1815339).

2289465 is an equidigital number, since it uses as much as digits as its factorization.

2289465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670 (or 5661 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 2289465 is about 1513.0978157409. The cubic root of 2289465 is about 131.7987636153.

The spelling of 2289465 in words is "two million, two hundred eighty-nine thousand, four hundred sixty-five".