989240 has 32 divisors (see below), whose sum is σ = 2544480. Its totient is φ = 339072.

The previous prime is 989239. The next prime is 989249. The reversal of 989240 is 42989.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 989197 and 989206.

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 989240.

It is not an unprimeable number, because it can be changed into a prime (989249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

2⁹⁸⁹²⁴⁰ is an apocalyptic number.

It is an amenable number.

989240 is an abundant number, since it is smaller than the sum of its proper divisors (1555240).

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

989240 is a wasteful number, since it uses less digits than its factorization.

989240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 989240 is about 994.6054494120. The cubic root of 989240 is about 99.6400391700.

The spelling of 989240 in words is "nine hundred eighty-nine thousand, two hundred forty".