323149056 has 144 divisors (see below), whose sum is σ = 929807424. Its totient is φ = 99254272.

The previous prime is 323149033. The next prime is 323149061. The reversal of 323149056 is 650941323.

It is a super-2 number, since 2×323149056² = 208850624787382272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691735 + ... + 692201.

It is an arithmetic number, because the mean of its divisors is an integer number (6456996).

Almost surely, 2^323149056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323149056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464903712).

323149056 is an abundant number, since it is smaller than the sum of its proper divisors (606658368).

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

323149056 is a wasteful number, since it uses less digits than its factorization.

323149056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 323149056 is about 17976.3471261544. The cubic root of 323149056 is about 686.2267296465.

The spelling of 323149056 in words is "three hundred twenty-three million, one hundred forty-nine thousand, fifty-six".