328128452 has 6 divisors (see below), whose sum is σ = 574224798. Its totient is φ = 164064224.

The previous prime is 328128443. The next prime is 328128467. The reversal of 328128452 is 254821823.

It can be written as a sum of positive squares in only one way, i.e., 195049156 + 133079296 = 13966^2 + 11536^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41016053 + ... + 41016060.

It is an arithmetic number, because the mean of its divisors is an integer number (95704133).

Almost surely, 2^328128452 is an apocalyptic number.

It is an amenable number.

328128452 is a deficient number, since it is larger than the sum of its proper divisors (246096346).

328128452 is a wasteful number, since it uses less digits than its factorization.

328128452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82032117 (or 82032115 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 328128452 is about 18114.3162167386. The cubic root of 328128452 is about 689.7334628312.

The spelling of 328128452 in words is "three hundred twenty-eight million, one hundred twenty-eight thousand, four hundred fifty-two".