1330620 has 48 divisors (see below), whose sum is σ = 3792768. Its totient is φ = 348480.

The previous prime is 1330603. The next prime is 1330621. The reversal of 1330620 is 260331.

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 1330620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330621) 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, 3855 + ... + 4185.

It is an arithmetic number, because the mean of its divisors is an integer number (79016).

2^1330620 is an apocalyptic number.

1330620 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 1330620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896384).

1330620 is an abundant number, since it is smaller than the sum of its proper divisors (2462148).

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

1330620 is a wasteful number, since it uses less digits than its factorization.

1330620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1330620 is about 1153.5250322381. The cubic root of 1330620 is about 109.9895306840.

Adding to 1330620 its reverse (260331), we get a palindrome (1590951).

The spelling of 1330620 in words is "one million, three hundred thirty thousand, six hundred twenty".