326385940 has 24 divisors (see below), whose sum is σ = 685830600. Its totient is φ = 130474368.

The previous prime is 326385889. The next prime is 326385947. The reversal of 326385940 is 49583623.

It can be written as a sum of positive squares in 4 ways, for example, as 32126224 + 294259716 = 5668^2 + 17154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 326385893 and 326385902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326385947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37086 + ... + 45034.

It is an arithmetic number, because the mean of its divisors is an integer number (28576275).

Almost surely, 2^326385940 is an apocalyptic number.

It is an amenable number.

326385940 is an abundant number, since it is smaller than the sum of its proper divisors (359444660).

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

326385940 is a wasteful number, since it uses less digits than its factorization.

326385940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 326385940 is about 18066.1545437871. The cubic root of 326385940 is about 688.5103619203.

The spelling of 326385940 in words is "three hundred twenty-six million, three hundred eighty-five thousand, nine hundred forty".