489993408 has 112 divisors (see below), whose sum is σ = 1447860960. Its totient is φ = 162496512.

The previous prime is 489993391. The next prime is 489993433. The reversal of 489993408 is 804399984.

It is a super-3 number, since 3×489993408³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402016 + ... + 403232.

It is an arithmetic number, because the mean of its divisors is an integer number (12927330).

Almost surely, 2^489993408 is an apocalyptic number.

489993408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489993408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723930480).

489993408 is an abundant number, since it is smaller than the sum of its proper divisors (957867552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489993408 is a wasteful number, since it uses less digits than its factorization.

489993408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 489993408 is about 22135.7947225755. The cubic root of 489993408 is about 788.3699809489.

The spelling of 489993408 in words is "four hundred eighty-nine million, nine hundred ninety-three thousand, four hundred eight".