1330545440 has 96 divisors (see below), whose sum is σ = 3599334144. Its totient is φ = 455316480.

The previous prime is 1330545439. The next prime is 1330545479. The reversal of 1330545440 is 445450331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918797 + ... + 920243.

It is an arithmetic number, because the mean of its divisors is an integer number (37493064).

Almost surely, 2^1330545440 is an apocalyptic number.

1330545440 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 1330545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799667072).

1330545440 is an abundant number, since it is smaller than the sum of its proper divisors (2268788704).

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

1330545440 is a wasteful number, since it uses less digits than its factorization.

1330545440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1330545440 is about 36476.6423893428. The cubic root of 1330545440 is about 1099.8747626015.

Adding to 1330545440 its reverse (445450331), we get a palindrome (1775995771).

The spelling of 1330545440 in words is "one billion, three hundred thirty million, five hundred forty-five thousand, four hundred forty".