323648144 has 20 divisors (see below), whose sum is σ = 634116780. Its totient is φ = 160005120.

The previous prime is 323648113. The next prime is 323648167. The reversal of 323648144 is 441846323.

It can be written as a sum of positive squares in 2 ways, for example, as 86118400 + 237529744 = 9280^2 + 15412^2 .

It is a super-2 number, since 2×323648144² = 209496242229289472, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 112217 + ... + 115064.

It is an arithmetic number, because the mean of its divisors is an integer number (31705839).

Almost surely, 2^323648144 is an apocalyptic number.

It is an amenable number.

323648144 is a deficient number, since it is larger than the sum of its proper divisors (310468636).

323648144 is a wasteful number, since it uses less digits than its factorization.

323648144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227378 (or 227372 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 323648144 is about 17990.2235672601. The cubic root of 323648144 is about 686.5798291964.

The spelling of 323648144 in words is "three hundred twenty-three million, six hundred forty-eight thousand, one hundred forty-four".