18064489 has 8 divisors (see below), whose sum is σ = 19307808. Its totient is φ = 16841280.

The previous prime is 18064481. The next prime is 18064511. The reversal of 18064489 is 98446081.

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

It is a cyclic number.

It is not a de Polignac number, because 18064489 - 2³ = 18064481 is a prime.

It is a super-2 number, since 2×18064489² = 652651525662242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18064481) 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 7 ways as a sum of consecutive naturals, for example, 3147 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (2413476).

Almost surely, 2^18064489 is an apocalyptic number.

It is an amenable number.

18064489 is a deficient number, since it is larger than the sum of its proper divisors (1243319).

18064489 is a wasteful number, since it uses less digits than its factorization.

18064489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 18064489 is about 4250.2339935585. The cubic root of 18064489 is about 262.3867460045.

The spelling of 18064489 in words is "eighteen million, sixty-four thousand, four hundred eighty-nine".