998460540 has 576 divisors, whose sum is σ = 4075545600. Its totient is φ = 198443520.

The previous prime is 998460499. The next prime is 998460569. The reversal of 998460540 is 45064899.

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 an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16923031 + ... + 16923089.

It is an arithmetic number, because the mean of its divisors is an integer number (7075600).

Almost surely, 2^998460540 is an apocalyptic number.

998460540 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 998460540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037772800).

998460540 is an abundant number, since it is smaller than the sum of its proper divisors (3077085060).

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

998460540 is a wasteful number, since it uses less digits than its factorization.

998460540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 998460540 is about 31598.4262266335. The cubic root of 998460540 is about 999.4865831149.

It can be divided in two parts, 998460 and 540, that multiplied together give a square (539168400 = 23220²).

The spelling of 998460540 in words is "nine hundred ninety-eight million, four hundred sixty thousand, five hundred forty".