998460 has 72 divisors (see below), whose sum is σ = 3180240. Its totient is φ = 260064.

The previous prime is 998443. The next prime is 998471. The reversal of 998460 is 64899.

It is a super-3 number, since 3×998460³ = 2986161333443208000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23199 + ... + 23241.

It is an arithmetic number, because the mean of its divisors is an integer number (44170).

2⁹⁹⁸⁴⁶⁰ is an apocalyptic number.

998460 is a gapful number since it is divisible by the number (90) 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 998460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590120).

998460 is an abundant number, since it is smaller than the sum of its proper divisors (2181780).

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

998460 is a wasteful number, since it uses less digits than its factorization.

998460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 998460 is about 999.2297033215. The cubic root of 998460 is about 99.9486402930.

The spelling of 998460 in words is "nine hundred ninety-eight thousand, four hundred sixty".