498168840 has 64 divisors (see below), whose sum is σ = 1609473600. Its totient is φ = 122625792.

The previous prime is 498168787. The next prime is 498168841. The reversal of 498168840 is 48861894.

It is a self number, because there is not a number n which added to its sum of digits gives 498168840.

It is not an unprimeable number, because it can be changed into a prime (498168841) by changing a digit.

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, 158110 + ... + 161229.

It is an arithmetic number, because the mean of its divisors is an integer number (25148025).

Almost surely, 2^498168840 is an apocalyptic number.

498168840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

498168840 is an abundant number, since it is smaller than the sum of its proper divisors (1111304760).

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

498168840 is a wasteful number, since it uses less digits than its factorization.

498168840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319366 (or 319362 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 498168840 is about 22319.6962344921. The cubic root of 498168840 is about 792.7304122928.

The spelling of 498168840 in words is "four hundred ninety-eight million, one hundred sixty-eight thousand, eight hundred forty".