1330323220 has 48 divisors (see below), whose sum is σ = 2922312960. Its totient is φ = 507741696.

The previous prime is 1330323199. The next prime is 1330323251. The reversal of 1330323220 is 223230331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195841 + ... + 202519.

It is an arithmetic number, because the mean of its divisors is an integer number (60881520).

Almost surely, 2^1330323220 is an apocalyptic number.

1330323220 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 1330323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1461156480).

1330323220 is an abundant number, since it is smaller than the sum of its proper divisors (1591989740).

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

1330323220 is a wasteful number, since it uses less digits than its factorization.

1330323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144 (or 7142 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 1330323220 is about 36473.5962032811. The cubic root of 1330323220 is about 1099.8135276196.

Adding to 1330323220 its reverse (223230331), we get a palindrome (1553553551).

The spelling of 1330323220 in words is "one billion, three hundred thirty million, three hundred twenty-three thousand, two hundred twenty".