326628090 has 48 divisors (see below), whose sum is σ = 876635136. Its totient is φ = 84290400.

The previous prime is 326628067. The next prime is 326628091. The reversal of 326628090 is 90826623.

326628090 is a `hidden beast` number, since 3 + 26 + 628 + 0 + 9 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (326628091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55746 + ... + 61325.

It is an arithmetic number, because the mean of its divisors is an integer number (18263232).

Almost surely, 2^326628090 is an apocalyptic number.

326628090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

326628090 is an abundant number, since it is smaller than the sum of its proper divisors (550007046).

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

326628090 is a wasteful number, since it uses less digits than its factorization.

326628090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117115 (or 117112 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 326628090 is about 18072.8550594531. The cubic root of 326628090 is about 688.6805914446.

The spelling of 326628090 in words is "three hundred twenty-six million, six hundred twenty-eight thousand, ninety".