1328356603 has 16 divisors (see below), whose sum is σ = 1569034240. Its totient is φ = 1100498400.

The previous prime is 1328356583. The next prime is 1328356643. The reversal of 1328356603 is 3066538231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1328356603 - 2²⁹ = 791485691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328356643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196093 + ... + 202753.

It is an arithmetic number, because the mean of its divisors is an integer number (98064640).

Almost surely, 2^1328356603 is an apocalyptic number.

1328356603 is a deficient number, since it is larger than the sum of its proper divisors (240677637).

1328356603 is an equidigital number, since it uses as much as digits as its factorization.

1328356603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 1328356603 is about 36446.6267712116. The cubic root of 1328356603 is about 1099.2713088477.

The spelling of 1328356603 in words is "one billion, three hundred twenty-eight million, three hundred fifty-six thousand, six hundred three".