328418432 has 16 divisors (see below), whose sum is σ = 654271350. Its totient is φ = 164209152.

The previous prime is 328418413. The next prime is 328418437. The reversal of 328418432 is 234814823.

It can be written as a sum of positive squares in only one way, i.e., 321987136 + 6431296 = 17944^2 + 2536^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 328418392 and 328418401.

It is not an unprimeable number, because it can be changed into a prime (328418437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282757 + ... + 1283012.

Almost surely, 2^328418432 is an apocalyptic number.

328418432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

328418432 is a deficient number, since it is larger than the sum of its proper divisors (325852918).

328418432 is an equidigital number, since it uses as much as digits as its factorization.

328418432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565783 (or 2565771 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 328418432 is about 18122.3186154532. The cubic root of 328418432 is about 689.9365845241.

The spelling of 328418432 in words is "three hundred twenty-eight million, four hundred eighteen thousand, four hundred thirty-two".