1320000 has 140 divisors (see below), whose sum is σ = 4760976. Its totient is φ = 320000.

The previous prime is 1319963. The next prime is 1320019. The reversal of 1320000 is 231.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119995 + ... + 120005.

2^1320000 is an apocalyptic number.

1320000 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 1320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380488).

1320000 is an abundant number, since it is smaller than the sum of its proper divisors (3440976).

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

1320000 is an equidigital number, since it uses as much as digits as its factorization.

1320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 1320000 is about 1148.9125293076. The cubic root of 1320000 is about 109.6961310487.

Adding to 1320000 its reverse (231), we get a palindrome (1320231).

The spelling of 1320000 in words is "one million, three hundred twenty thousand".