489812400 has 960 divisors, whose sum is σ = 2361753600. Its totient is φ = 93312000.

The previous prime is 489812387. The next prime is 489812413. The reversal of 489812400 is 4218984.

It is an interprime number because it is at equal distance from previous prime (489812387) and next prime (489812413).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15800385 + ... + 15800415.

It is an arithmetic number, because the mean of its divisors is an integer number (2460160).

Almost surely, 2^489812400 is an apocalyptic number.

489812400 is a gapful number since it is divisible by the number (40) 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 489812400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180876800).

489812400 is an abundant number, since it is smaller than the sum of its proper divisors (1871941200).

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

489812400 is a wasteful number, since it uses less digits than its factorization.

489812400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 489812400 is about 22131.7057634517. The cubic root of 489812400 is about 788.2728919905.

The spelling of 489812400 in words is "four hundred eighty-nine million, eight hundred twelve thousand, four hundred".