1328245403 has 4 divisors (see below), whose sum is σ = 1330508760. Its totient is φ = 1325982048.

The previous prime is 1328245381. The next prime is 1328245433. The reversal of 1328245403 is 3045428231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1328245403 - 2⁶ = 1328245339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1328245403.

It is not an unprimeable number, because it can be changed into a prime (1328245433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130798 + ... + 1131971.

It is an arithmetic number, because the mean of its divisors is an integer number (332627190).

Almost surely, 2^1328245403 is an apocalyptic number.

1328245403 is a deficient number, since it is larger than the sum of its proper divisors (2263357).

1328245403 is an equidigital number, since it uses as much as digits as its factorization.

1328245403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263356.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1328245403 is about 36445.1012208774. The cubic root of 1328245403 is about 1099.2406337563.

It can be divided in two parts, 13282 and 45403, that added together give a palindrome (58685).

The spelling of 1328245403 in words is "one billion, three hundred twenty-eight million, two hundred forty-five thousand, four hundred three".