1333320 has 64 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 345600.

The previous prime is 1333313. The next prime is 1333331. The reversal of 1333320 is 233331.

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 1333320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4785 + ... + 5055.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2^1333320 is an apocalyptic number.

1333320 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 1333320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2056320).

1333320 is an abundant number, since it is smaller than the sum of its proper divisors (2779320).

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

1333320 is a wasteful number, since it uses less digits than its factorization.

1333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 1333320 is about 1154.6947648621. The cubic root of 1333320 is about 110.0638747478.

1333320 divided by its sum of digits (15) gives a palindrome (88888).

Adding to 1333320 its reverse (233331), we get a palindrome (1566651).

It can be divided in two parts, 1333 and 320, that added together give a triangular number (1653 = T₅₇).

The spelling of 1333320 in words is "one million, three hundred thirty-three thousand, three hundred twenty".