984940 has 48 divisors (see below), whose sum is σ = 2336544. Its totient is φ = 348480.

The previous prime is 984931. The next prime is 984947. The reversal of 984940 is 49489.

984940 = T₇₅ + T₇₆ + ... + T₁₈₄.

It is a junction number, because it is equal to n+sod(n) for n = 984896 and 984905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984947) 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, 26602 + ... + 26638.

It is an arithmetic number, because the mean of its divisors is an integer number (48678).

2⁹⁸⁴⁹⁴⁰ 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 984940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168272).

984940 is an abundant number, since it is smaller than the sum of its proper divisors (1351604).

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

984940 is a wasteful number, since it uses less digits than its factorization.

984940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 984940 is about 992.4414340403. The cubic root of 984940 is about 99.4954586616.

Subtracting from 984940 its sum of digits (34), we obtain a triangular number (984906 = T₁₄₀₃).

It can be divided in two parts, 9849 and 40, that added together give a palindrome (9889).

The spelling of 984940 in words is "nine hundred eighty-four thousand, nine hundred forty".