1330506 has 40 divisors (see below), whose sum is σ = 3066624. Its totient is φ = 430920.

The previous prime is 1330501. The next prime is 1330519. The reversal of 1330506 is 6050331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6871 + ... + 7061.

2^1330506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533312).

1330506 is an abundant number, since it is smaller than the sum of its proper divisors (1736118).

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

1330506 is a wasteful number, since it uses less digits than its factorization.

1330506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 1330506 is about 1153.4756174276. The cubic root of 1330506 is about 109.9863895006.

Adding to 1330506 its reverse (6050331), we get a palindrome (7380837).

The spelling of 1330506 in words is "one million, three hundred thirty thousand, five hundred six".