489826749 has 8 divisors (see below), whose sum is σ = 662850400. Its totient is φ = 321677136.

The previous prime is 489826747. The next prime is 489826807. The reversal of 489826749 is 947628984.

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

It is not a de Polignac number, because 489826749 - 2¹ = 489826747 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 (489826747) 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, 1218274 + ... + 1218675.

It is an arithmetic number, because the mean of its divisors is an integer number (82856300).

Almost surely, 2^489826749 is an apocalyptic number.

It is an amenable number.

489826749 is a deficient number, since it is larger than the sum of its proper divisors (173023651).

489826749 is a wasteful number, since it uses less digits than its factorization.

489826749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437019.

The product of its digits is 6967296, while the sum is 57.

The square root of 489826749 is about 22132.0299340119. The cubic root of 489826749 is about 788.2805893711.

The spelling of 489826749 in words is "four hundred eighty-nine million, eight hundred twenty-six thousand, seven hundred forty-nine".