328668453 has 12 divisors (see below), whose sum is σ = 476245068. Its totient is φ = 218419200.

The previous prime is 328668451. The next prime is 328668481. The reversal of 328668453 is 354866823.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 317659329 = 3318^2 + 17823^2 .

It is not a de Polignac number, because 328668453 - 2¹ = 328668451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328668399 and 328668408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328668451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54748 + ... + 60453.

It is an arithmetic number, because the mean of its divisors is an integer number (39687089).

Almost surely, 2^328668453 is an apocalyptic number.

It is an amenable number.

328668453 is a deficient number, since it is larger than the sum of its proper divisors (147576615).

328668453 is a wasteful number, since it uses less digits than its factorization.

328668453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115524 (or 115521 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 328668453 is about 18129.2154546191. The cubic root of 328668453 is about 690.1116202537. Note that the first 3 decimals are identical.

The spelling of 328668453 in words is "three hundred twenty-eight million, six hundred sixty-eight thousand, four hundred fifty-three".