328419645 has 16 divisors (see below), whose sum is σ = 548318592. Its totient is φ = 167541440.

The previous prime is 328419607. The next prime is 328419647. The reversal of 328419645 is 546914823.

It is not a de Polignac number, because 328419645 - 2¹⁴ = 328403261 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 328419597 and 328419606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328419647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475626 + ... + 476315.

It is an arithmetic number, because the mean of its divisors is an integer number (34269912).

Almost surely, 2^328419645 is an apocalyptic number.

It is an amenable number.

328419645 is a deficient number, since it is larger than the sum of its proper divisors (219898947).

328419645 is a wasteful number, since it uses less digits than its factorization.

328419645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951972.

The product of its digits is 207360, while the sum is 42.

The square root of 328419645 is about 18122.3520824423. The cubic root of 328419645 is about 689.9374339405.

It can be divided in two parts, 32841 and 9645, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 328419645 in words is "three hundred twenty-eight million, four hundred nineteen thousand, six hundred forty-five".