328666474 has 8 divisors (see below), whose sum is σ = 521999748. Its totient is φ = 154666560.

The previous prime is 328666463. The next prime is 328666477. The reversal of 328666474 is 474666823.

It can be written as a sum of positive squares in 2 ways, for example, as 316590849 + 12075625 = 17793^2 + 3475^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×328666474² = 216043302263185352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328666477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4833297 + ... + 4833364.

Almost surely, 2^328666474 is an apocalyptic number.

328666474 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

328666474 is a deficient number, since it is larger than the sum of its proper divisors (193333274).

328666474 is a wasteful number, since it uses less digits than its factorization.

328666474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9666680.

The product of its digits is 1161216, while the sum is 46.

The square root of 328666474 is about 18129.1608741276. The cubic root of 328666474 is about 690.1102351358.

It can be divided in two parts, 32866 and 6474, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 328666474 in words is "three hundred twenty-eight million, six hundred sixty-six thousand, four hundred seventy-four".