328415449 has 2 divisors, whose sum is σ = 328415450. Its totient is φ = 328415448.

The previous prime is 328415447. The next prime is 328415489. The reversal of 328415449 is 944514823.

It is an a-pointer prime, because the next prime (328415489) can be obtained adding 328415449 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315311049 + 13104400 = 17757^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 328415449 - 2¹ = 328415447 is a prime.

Together with 328415447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (328415447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164207724 + 164207725.

It is an arithmetic number, because the mean of its divisors is an integer number (164207725).

Almost surely, 2^328415449 is an apocalyptic number.

It is an amenable number.

328415449 is a deficient number, since it is larger than the sum of its proper divisors (1).

328415449 is an equidigital number, since it uses as much as digits as its factorization.

328415449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 328415449 is about 18122.2363134355. The cubic root of 328415449 is about 689.9344956370.

The spelling of 328415449 in words is "three hundred twenty-eight million, four hundred fifteen thousand, four hundred forty-nine".