326079640 has 16 divisors (see below), whose sum is σ = 733679280. Its totient is φ = 130431840.

The previous prime is 326079629. The next prime is 326079643. The reversal of 326079640 is 46970623.

It is a self number, because there is not a number n which added to its sum of digits gives 326079640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326079643) 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, 4075956 + ... + 4076035.

It is an arithmetic number, because the mean of its divisors is an integer number (45854955).

Almost surely, 2^326079640 is an apocalyptic number.

It is an amenable number.

326079640 is an abundant number, since it is smaller than the sum of its proper divisors (407599640).

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

326079640 is a wasteful number, since it uses less digits than its factorization.

326079640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152002 (or 8151998 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 326079640 is about 18057.6753764154. The cubic root of 326079640 is about 688.2949148037.

The spelling of 326079640 in words is "three hundred twenty-six million, seventy-nine thousand, six hundred forty".