984540 has 48 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 257280.

The previous prime is 984539. The next prime is 984541. The reversal of 984540 is 45489.

It is an interprime number because it is at equal distance from previous prime (984539) and next prime (984541).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 984498 and 984507.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 984540.

It is not an unprimeable number, because it can be changed into a prime (984541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526 + ... + 3794.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2⁹⁸⁴⁵⁴⁰ 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 984540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406160).

984540 is an abundant number, since it is smaller than the sum of its proper divisors (1827780).

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

984540 is a wasteful number, since it uses less digits than its factorization.

984540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 984540 is about 992.2398903491. The cubic root of 984540 is about 99.4819879351.

The spelling of 984540 in words is "nine hundred eighty-four thousand, five hundred forty".