328449413 has 2 divisors, whose sum is σ = 328449414. Its totient is φ = 328449412.

The previous prime is 328449403. The next prime is 328449419. The reversal of 328449413 is 314944823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328261924 + 187489 = 18118^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 328449413 - 2⁶ = 328449349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328449419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164224706 + 164224707.

It is an arithmetic number, because the mean of its divisors is an integer number (164224707).

Almost surely, 2^328449413 is an apocalyptic number.

It is an amenable number.

328449413 is a deficient number, since it is larger than the sum of its proper divisors (1).

328449413 is an equidigital number, since it uses as much as digits as its factorization.

328449413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 328449413 is about 18123.1733700255. The cubic root of 328449413 is about 689.9582786508.

The spelling of 328449413 in words is "three hundred twenty-eight million, four hundred forty-nine thousand, four hundred thirteen".