493455489 has 8 divisors (see below), whose sum is σ = 679164672. Its totient is φ = 318358320.

The previous prime is 493455463. The next prime is 493455511. The reversal of 493455489 is 984554394.

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

It is not a de Polignac number, because 493455489 - 2⁸ = 493455233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493455419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2652894 + ... + 2653079.

It is an arithmetic number, because the mean of its divisors is an integer number (84895584).

Almost surely, 2^493455489 is an apocalyptic number.

It is an amenable number.

493455489 is a deficient number, since it is larger than the sum of its proper divisors (185709183).

493455489 is a wasteful number, since it uses less digits than its factorization.

493455489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306007.

The product of its digits is 3110400, while the sum is 51.

The square root of 493455489 is about 22213.8580395212. The cubic root of 493455489 is about 790.2223851841. Note that the first 3 decimals are identical.

The spelling of 493455489 in words is "four hundred ninety-three million, four hundred fifty-five thousand, four hundred eighty-nine".