326641994 has 16 divisors (see below), whose sum is σ = 575092608. Its totient is φ = 136205712.

The previous prime is 326641969. The next prime is 326642023. The reversal of 326641994 is 499146623.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314774 + ... + 315809.

It is an arithmetic number, because the mean of its divisors is an integer number (35943288).

Almost surely, 2^326641994 is an apocalyptic number.

326641994 is a deficient number, since it is larger than the sum of its proper divisors (248450614).

326641994 is a wasteful number, since it uses less digits than its factorization.

326641994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630629.

The product of its digits is 279936, while the sum is 44.

The square root of 326641994 is about 18073.2397206478. The cubic root of 326641994 is about 688.6903632915.

The spelling of 326641994 in words is "three hundred twenty-six million, six hundred forty-one thousand, nine hundred ninety-four".