323311428 has 36 divisors (see below), whose sum is σ = 891556848. Its totient is φ = 97973040.

The previous prime is 323311427. The next prime is 323311433. The reversal of 323311428 is 824113323.

323311428 is a `hidden beast` number, since 3 + 233 + 1 + 1 + 428 = 666.

323311428 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

323311428 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (323311427) 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 11 ways as a sum of consecutive naturals, for example, 407826 + ... + 408617.

It is an arithmetic number, because the mean of its divisors is an integer number (24765468).

Almost surely, 2^323311428 is an apocalyptic number.

It is an amenable number.

323311428 is an abundant number, since it is smaller than the sum of its proper divisors (568245420).

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

323311428 is a wasteful number, since it uses less digits than its factorization.

323311428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816464 (or 816459 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 323311428 is about 17980.8628269057. The cubic root of 323311428 is about 686.3416460164.

The spelling of 323311428 in words is "three hundred twenty-three million, three hundred eleven thousand, four hundred twenty-eight".