1328356427 has 4 divisors (see below), whose sum is σ = 1328705040. Its totient is φ = 1328007816.

The previous prime is 1328356411. The next prime is 1328356429. The reversal of 1328356427 is 7246538231.

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 1328356427 - 2⁴ = 1328356411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328356429) 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, 168527 + ... + 176232.

It is an arithmetic number, because the mean of its divisors is an integer number (332176260).

Almost surely, 2^1328356427 is an apocalyptic number.

1328356427 is a deficient number, since it is larger than the sum of its proper divisors (348613).

1328356427 is an equidigital number, since it uses as much as digits as its factorization.

1328356427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348612.

The product of its digits is 241920, while the sum is 41.

The square root of 1328356427 is about 36446.6243567220. The cubic root of 1328356427 is about 1099.2712602986.

The spelling of 1328356427 in words is "one billion, three hundred twenty-eight million, three hundred fifty-six thousand, four hundred twenty-seven".