326216740 has 24 divisors (see below), whose sum is σ = 725353272. Its totient is φ = 122810880.

The previous prime is 326216717. The next prime is 326216741. The reversal of 326216740 is 47612623.

It can be written as a sum of positive squares in 4 ways, for example, as 156800484 + 169416256 = 12522^2 + 13016^2 .

It is a super-2 number, since 2×326216740² = 212834722912455200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326216741) 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 7 ways as a sum of consecutive naturals, for example, 479391 + ... + 480070.

It is an arithmetic number, because the mean of its divisors is an integer number (30223053).

Almost surely, 2^326216740 is an apocalyptic number.

It is an amenable number.

326216740 is an abundant number, since it is smaller than the sum of its proper divisors (399136532).

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

326216740 is a wasteful number, since it uses less digits than its factorization.

326216740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959487 (or 959485 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 326216740 is about 18061.4711471685. The cubic root of 326216740 is about 688.3913656898.

It can be divided in two parts, 3262 and 16740, that added together give a palindrome (20002).

The spelling of 326216740 in words is "three hundred twenty-six million, two hundred sixteen thousand, seven hundred forty".