1327656428 has 48 divisors (see below), whose sum is σ = 2688505344. Its totient is φ = 561918720.

The previous prime is 1327656419. The next prime is 1327656431. The reversal of 1327656428 is 8246567231.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 1506548 + ... + 1507428.

It is an arithmetic number, because the mean of its divisors is an integer number (56010528).

Almost surely, 2^1327656428 is an apocalyptic number.

It is an amenable number.

1327656428 is an abundant number, since it is smaller than the sum of its proper divisors (1360848916).

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

1327656428 is a wasteful number, since it uses less digits than its factorization.

1327656428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1500 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 1327656428 is about 36437.0200208524. The cubic root of 1327656428 is about 1099.0781334210.

The spelling of 1327656428 in words is "one billion, three hundred twenty-seven million, six hundred fifty-six thousand, four hundred twenty-eight".