490981500 has 192 divisors, whose sum is σ = 1611792000. Its totient is φ = 130636800.

The previous prime is 490981493. The next prime is 490981531. The reversal of 490981500 is 5189094.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1093276 + ... + 1093724.

It is an arithmetic number, because the mean of its divisors is an integer number (8394750).

Almost surely, 2^490981500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490981500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805896000).

490981500 is an abundant number, since it is smaller than the sum of its proper divisors (1120810500).

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

490981500 is an equidigital number, since it uses as much as digits as its factorization.

490981500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 490981500 is about 22158.1023555719. The cubic root of 490981500 is about 788.8995520464.

The spelling of 490981500 in words is "four hundred ninety million, nine hundred eighty-one thousand, five hundred".