498440 has 32 divisors (see below), whose sum is σ = 1189080. Its totient is φ = 187392.

The previous prime is 498439. The next prime is 498461. The reversal of 498440 is 44894.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 498436 + 4 = 706^2 + 2^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314 + ... + 1046.

2⁴⁹⁸⁴⁴⁰ is an apocalyptic number.

498440 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 498440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594540).

498440 is an abundant number, since it is smaller than the sum of its proper divisors (690640).

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

498440 is a wasteful number, since it uses less digits than its factorization.

498440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 498440 is about 706.0028328555. The cubic root of 498440 is about 79.2874217479.

The spelling of 498440 in words is "four hundred ninety-eight thousand, four hundred forty".