498435840 has 324 divisors, whose sum is σ = 2008364904. Its totient is φ = 113799168.

The previous prime is 498435827. The next prime is 498435841. The reversal of 498435840 is 48534894.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498435841) 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 35 ways as a sum of consecutive naturals, for example, 564039 + ... + 564921.

Almost surely, 2^498435840 is an apocalyptic number.

498435840 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 498435840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004182452).

498435840 is an abundant number, since it is smaller than the sum of its proper divisors (1509929064).

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

498435840 is a wasteful number, since it uses less digits than its factorization.

498435840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 498435840 is about 22325.6766974710. The cubic root of 498435840 is about 792.8720116868.

The spelling of 498435840 in words is "four hundred ninety-eight million, four hundred thirty-five thousand, eight hundred forty".