1009320 has 64 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 248064.

The previous prime is 1009319. The next prime is 1009321. The reversal of 1009320 is 239001.

It is an interprime number because it is at equal distance from previous prime (1009319) and next prime (1009321).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1009320.

It is not an unprimeable number, because it can be changed into a prime (1009321) 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, 1237 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2^1009320 is an apocalyptic number.

1009320 is a gapful number since it is divisible by the number (10) 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 1009320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632960).

1009320 is an abundant number, since it is smaller than the sum of its proper divisors (2256600).

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

1009320 is a wasteful number, since it uses less digits than its factorization.

1009320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1009320 is about 1004.6491925045. The cubic root of 1009320 is about 100.3097064953.

The spelling of 1009320 in words is "one million, nine thousand, three hundred twenty".