326520146 has 8 divisors (see below), whose sum is σ = 501726204. Its totient is φ = 159278080.

The previous prime is 326520143. The next prime is 326520169. The reversal of 326520146 is 641025623.

It can be written as a sum of positive squares in 2 ways, for example, as 303142921 + 23377225 = 17411^2 + 4835^2 .

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

It is a super-2 number, since 2×326520146² = 213230811487722632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326520143) 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, 1990895 + ... + 1991058.

Almost surely, 2^326520146 is an apocalyptic number.

326520146 is a deficient number, since it is larger than the sum of its proper divisors (175206058).

326520146 is a wasteful number, since it uses less digits than its factorization.

326520146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981996.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 326520146 is about 18069.8684555256. The cubic root of 326520146 is about 688.6047180678.

Adding to 326520146 its reverse (641025623), we get a palindrome (967545769).

The spelling of 326520146 in words is "three hundred twenty-six million, five hundred twenty thousand, one hundred forty-six".