489140447 has 4 divisors (see below), whose sum is σ = 489247416. Its totient is φ = 489033480.

The previous prime is 489140417. The next prime is 489140461. The reversal of 489140447 is 744041984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489140447 - 2⁸ = 489140191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489140417) 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, 46304 + ... + 55877.

It is an arithmetic number, because the mean of its divisors is an integer number (122311854).

Almost surely, 2^489140447 is an apocalyptic number.

489140447 is a deficient number, since it is larger than the sum of its proper divisors (106969).

489140447 is a wasteful number, since it uses less digits than its factorization.

489140447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106968.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 489140447 is about 22116.5197759503. The cubic root of 489140447 is about 787.9122609029.

The spelling of 489140447 in words is "four hundred eighty-nine million, one hundred forty thousand, four hundred forty-seven".