2261489 has 4 divisors (see below), whose sum is σ = 2279424. Its totient is φ = 2243556.

The previous prime is 2261473. The next prime is 2261503. The reversal of 2261489 is 9841622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2261489 - 2⁴ = 2261473 is a prime.

It is a super-2 number, since 2×2261489² = 10228664994242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8777 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (569856).

2^2261489 is an apocalyptic number.

It is an amenable number.

2261489 is a deficient number, since it is larger than the sum of its proper divisors (17935).

2261489 is a wasteful number, since it uses less digits than its factorization.

2261489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934.

The product of its digits is 6912, while the sum is 32.

The square root of 2261489 is about 1503.8247903263. The cubic root of 2261489 is about 131.2597259610.

The spelling of 2261489 in words is "two million, two hundred sixty-one thousand, four hundred eighty-nine".