12304489 has 4 divisors (see below), whose sum is σ = 12701440. Its totient is φ = 11907540.

The previous prime is 12304477. The next prime is 12304499. The reversal of 12304489 is 98440321.

12304489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12304489 - 2⁷ = 12304361 is a prime.

It is a super-2 number, since 2×12304489² = 302800899102242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 396919 = 12304489 / (1 + 2 + 3 + 0 + 4 + 4 + 8 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12304489.

It is not an unprimeable number, because it can be changed into a prime (12304499) 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, 198429 + ... + 198490.

It is an arithmetic number, because the mean of its divisors is an integer number (3175360).

Almost surely, 2^12304489 is an apocalyptic number.

It is an amenable number.

12304489 is a deficient number, since it is larger than the sum of its proper divisors (396951).

12304489 is an equidigital number, since it uses as much as digits as its factorization.

12304489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396950.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12304489 is about 3507.7755059296. The cubic root of 12304489 is about 230.8631023599.

The spelling of 12304489 in words is "twelve million, three hundred four thousand, four hundred eighty-nine".