489640354 has 8 divisors (see below), whose sum is σ = 839383488. Its totient is φ = 209845860.

The previous prime is 489640303. The next prime is 489640357. The reversal of 489640354 is 453046984.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 489640354.

It is not an unprimeable number, because it can be changed into a prime (489640357) 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, 17487142 + ... + 17487169.

It is an arithmetic number, because the mean of its divisors is an integer number (104922936).

Almost surely, 2^489640354 is an apocalyptic number.

489640354 is a deficient number, since it is larger than the sum of its proper divisors (349743134).

489640354 is a wasteful number, since it uses less digits than its factorization.

489640354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34974320.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 489640354 is about 22127.8185549322. The cubic root of 489640354 is about 788.1805878895.

The spelling of 489640354 in words is "four hundred eighty-nine million, six hundred forty thousand, three hundred fifty-four".