326672660 has 12 divisors (see below), whose sum is σ = 686012628. Its totient is φ = 130669056.

The previous prime is 326672659. The next prime is 326672669. The reversal of 326672660 is 66276623.

It can be written as a sum of positive squares in 2 ways, for example, as 168013444 + 158659216 = 12962^2 + 12596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326672669) 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, 8166797 + ... + 8166836.

It is an arithmetic number, because the mean of its divisors is an integer number (57167719).

Almost surely, 2^326672660 is an apocalyptic number.

It is an amenable number.

326672660 is an abundant number, since it is smaller than the sum of its proper divisors (359339968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326672660 is a wasteful number, since it uses less digits than its factorization.

326672660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16333642 (or 16333640 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 326672660 is about 18074.0880821136. The cubic root of 326672660 is about 688.7119146313.

The spelling of 326672660 in words is "three hundred twenty-six million, six hundred seventy-two thousand, six hundred sixty".