489129993 has 24 divisors (see below), whose sum is σ = 775232640. Its totient is φ = 294718560.

The previous prime is 489129943. The next prime is 489130013. The reversal of 489129993 is 399921984.

It is not a de Polignac number, because 489129993 - 2⁹ = 489129481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489129913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2848 + ... + 31406.

It is an arithmetic number, because the mean of its divisors is an integer number (32301360).

Almost surely, 2^489129993 is an apocalyptic number.

It is an amenable number.

489129993 is a deficient number, since it is larger than the sum of its proper divisors (286102647).

489129993 is a wasteful number, since it uses less digits than its factorization.

489129993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28749 (or 28746 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 489129993 is about 22116.2834355142. The cubic root of 489129993 is about 787.9066477274.

The spelling of 489129993 in words is "four hundred eighty-nine million, one hundred twenty-nine thousand, nine hundred ninety-three".