323440004 has 6 divisors (see below), whose sum is σ = 566020014. Its totient is φ = 161720000.

The previous prime is 323439989. The next prime is 323440009. The reversal of 323440004 is 400044323.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 320481604 + 2958400 = 17902^2 + 1720^2 .

It is a super-2 number, since 2×323440004² = 209226872375040032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323440009) 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 as a sum of consecutive naturals, namely, 40429997 + ... + 40430004.

It is an arithmetic number, because the mean of its divisors is an integer number (94336669).

Almost surely, 2^323440004 is an apocalyptic number.

It is an amenable number.

323440004 is a deficient number, since it is larger than the sum of its proper divisors (242580010).

323440004 is a wasteful number, since it uses less digits than its factorization.

323440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80860005 (or 80860003 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 323440004 is about 17984.4378283003. The cubic root of 323440004 is about 686.4326164763.

Adding to 323440004 its reverse (400044323), we get a palindrome (723484327).

The spelling of 323440004 in words is "three hundred twenty-three million, four hundred forty thousand, four".