323143444 has 24 divisors (see below), whose sum is σ = 610559208. Its totient is φ = 148761600.

The previous prime is 323143441. The next prime is 323143451. The reversal of 323143444 is 444341323.

It can be written as a sum of positive squares in 4 ways, for example, as 180579844 + 142563600 = 13438^2 + 11940^2 .

It is a super-2 number, since 2×323143444² = 208843370800362272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323143441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13104 + ... + 28600.

It is an arithmetic number, because the mean of its divisors is an integer number (25439967).

Almost surely, 2^323143444 is an apocalyptic number.

It is an amenable number.

323143444 is a deficient number, since it is larger than the sum of its proper divisors (287415764).

323143444 is a wasteful number, since it uses less digits than its factorization.

323143444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15915 (or 15913 counting only the distinct ones).

The product of its digits is 13824, while the sum is 28.

The square root of 323143444 is about 17976.1910314727. The cubic root of 323143444 is about 686.2227571487. Note that the first 3 decimals are identical.

Adding to 323143444 its reverse (444341323), we get a palindrome (767484767).

The spelling of 323143444 in words is "three hundred twenty-three million, one hundred forty-three thousand, four hundred forty-four".