1330056 has 144 divisors (see below), whose sum is σ = 4668300. Its totient is φ = 338688.
The previous prime is 1330031. The next prime is 1330061. The reversal of 1330056 is 6500331.
It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 44100 = 1134^2 + 210^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45850 + ... + 45878.
21330056 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1330056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2334150).
1330056 is an abundant number, since it is smaller than the sum of its proper divisors (3338244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1330056 is a wasteful number, since it uses less digits than its factorization.
1330056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68 (or 54 counting only the distinct ones).
The product of its (nonzero) digits is 270, while the sum is 18.
The square root of 1330056 is about 1153.2805382907. The cubic root of 1330056 is about 109.9739883399.
Adding to 1330056 its reverse (6500331), we get a palindrome (7830387).
The spelling of 1330056 in words is "one million, three hundred thirty thousand, fifty-six".
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