490231800 has 72 divisors (see below), whose sum is σ = 1646367840. Its totient is φ = 130728000.

The previous prime is 490231789. The next prime is 490231813. The reversal of 490231800 is 8132094.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 134376 + ... + 137975.

It is an arithmetic number, because the mean of its divisors is an integer number (22866220).

Almost surely, 2^490231800 is an apocalyptic number.

490231800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490231800 is an abundant number, since it is smaller than the sum of its proper divisors (1156136040).

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

490231800 is a wasteful number, since it uses less digits than its factorization.

490231800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272373 (or 272361 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 490231800 is about 22141.1788304056. The cubic root of 490231800 is about 788.4978130263.

Adding to 490231800 its reverse (8132094), we get a palindrome (498363894).

The spelling of 490231800 in words is "four hundred ninety million, two hundred thirty-one thousand, eight hundred".