489990249 has 64 divisors (see below), whose sum is σ = 854464000. Its totient is φ = 277385472.

The previous prime is 489990211. The next prime is 489990283. The reversal of 489990249 is 942099984.

It is not a de Polignac number, because 489990249 - 2⁹ = 489989737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489990195 and 489990204.

It is not an unprimeable number, because it can be changed into a prime (489990209) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1453809 + ... + 1454145.

It is an arithmetic number, because the mean of its divisors is an integer number (13351000).

Almost surely, 2^489990249 is an apocalyptic number.

489990249 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

489990249 is a deficient number, since it is larger than the sum of its proper divisors (364473751).

489990249 is a wasteful number, since it uses less digits than its factorization.

489990249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 489990249 is about 22135.7233674439. The cubic root of 489990249 is about 788.3682867315.

The spelling of 489990249 in words is "four hundred eighty-nine million, nine hundred ninety thousand, two hundred forty-nine".