489945949 has 8 divisors (see below), whose sum is σ = 494281760. Its totient is φ = 485622000.

The previous prime is 489945947. The next prime is 489945959. The reversal of 489945949 is 949549984.

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 489945949 - 2¹ = 489945947 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 (489945943) 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, 93499 + ... + 98599.

It is an arithmetic number, because the mean of its divisors is an integer number (61785220).

Almost surely, 2^489945949 is an apocalyptic number.

It is an amenable number.

489945949 is a deficient number, since it is larger than the sum of its proper divisors (4335811).

489945949 is a wasteful number, since it uses less digits than its factorization.

489945949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931.

The product of its digits is 16796160, while the sum is 61.

The square root of 489945949 is about 22134.7226998668. The cubic root of 489945949 is about 788.3445272331.

The spelling of 489945949 in words is "four hundred eighty-nine million, nine hundred forty-five thousand, nine hundred forty-nine".