1330534644 has 24 divisors (see below), whose sum is σ = 3136589568. Its totient is φ = 438938880.

The previous prime is 1330534637. The next prime is 1330534657. The reversal of 1330534644 is 4464350331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570372 + ... + 572699.

It is an arithmetic number, because the mean of its divisors is an integer number (130691232).

Almost surely, 2^1330534644 is an apocalyptic number.

It is an amenable number.

1330534644 is an abundant number, since it is smaller than the sum of its proper divisors (1806054924).

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

1330534644 is a wasteful number, since it uses less digits than its factorization.

1330534644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143175 (or 1143173 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 1330534644 is about 36476.4944039309. The cubic root of 1330534644 is about 1099.8717878114.

Adding to 1330534644 its reverse (4464350331), we get a palindrome (5794884975).

The spelling of 1330534644 in words is "one billion, three hundred thirty million, five hundred thirty-four thousand, six hundred forty-four".