498440256 has 56 divisors (see below), whose sum is σ = 1325721504. Its totient is φ = 165273600.

The previous prime is 498440251. The next prime is 498440263. The reversal of 498440256 is 652044894.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (498440251) 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 7 ways as a sum of consecutive naturals, for example, 30331 + ... + 43781.

Almost surely, 2^498440256 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 498440256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662860752).

498440256 is an abundant number, since it is smaller than the sum of its proper divisors (827281248).

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

498440256 is a wasteful number, since it uses less digits than its factorization.

498440256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13659 (or 13649 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 498440256 is about 22325.7755968298. The cubic root of 498440256 is about 792.8743532202.

The spelling of 498440256 in words is "four hundred ninety-eight million, four hundred forty thousand, two hundred fifty-six".