1327643530 has 16 divisors (see below), whose sum is σ = 2400198120. Its totient is φ = 528737472.

The previous prime is 1327643521. The next prime is 1327643531. The reversal of 1327643530 is 353467231.

It can be written as a sum of positive squares in 4 ways, for example, as 1064782161 + 262861369 = 32631^2 + 16213^2 .

It is not an unprimeable number, because it can be changed into a prime (1327643531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287589 + ... + 292168.

Almost surely, 2^1327643530 is an apocalyptic number.

1327643530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1327643530 is a deficient number, since it is larger than the sum of its proper divisors (1072554590).

1327643530 is a wasteful number, since it uses less digits than its factorization.

1327643530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579993.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 1327643530 is about 36436.8430300980. The cubic root of 1327643530 is about 1099.0745742784.

The spelling of 1327643530 in words is "one billion, three hundred twenty-seven million, six hundred forty-three thousand, five hundred thirty".