1330091424 has 144 divisors (see below), whose sum is σ = 4022266248. Its totient is φ = 415481856.

The previous prime is 1330091381. The next prime is 1330091431. The reversal of 1330091424 is 4241900331.

It can be written as a sum of positive squares in 4 ways, for example, as 1240448400 + 89643024 = 35220^2 + 9468^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1551604 + ... + 1552460.

Almost surely, 2^1330091424 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 1330091424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2011133124).

1330091424 is an abundant number, since it is smaller than the sum of its proper divisors (2692174824).

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

1330091424 is a wasteful number, since it uses less digits than its factorization.

1330091424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1330091424 is about 36470.4184785423. The cubic root of 1330091424 is about 1099.7496466067.

Adding to 1330091424 its reverse (4241900331), we get a palindrome (5571991755).

The spelling of 1330091424 in words is "one billion, three hundred thirty million, ninety-one thousand, four hundred twenty-four".