326494240 has 96 divisors (see below), whose sum is σ = 790518960. Its totient is φ = 127401984.

The previous prime is 326494237. The next prime is 326494243. The reversal of 326494240 is 42494623.

It is an interprime number because it is at equal distance from previous prime (326494237) and next prime (326494243).

It can be written as a sum of positive squares in 8 ways, for example, as 121088016 + 205406224 = 11004^2 + 14332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 326494196 and 326494205.

It is not an unprimeable number, because it can be changed into a prime (326494243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1691584 + ... + 1691776.

Almost surely, 2^326494240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326494240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395259480).

326494240 is an abundant number, since it is smaller than the sum of its proper divisors (464024720).

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

326494240 is a wasteful number, since it uses less digits than its factorization.

326494240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 326494240 is about 18069.1516126242. The cubic root of 326494240 is about 688.5865063629.

The spelling of 326494240 in words is "three hundred twenty-six million, four hundred ninety-four thousand, two hundred forty".