323995140 has 120 divisors (see below), whose sum is σ = 1161623232. Its totient is φ = 74053440.

The previous prime is 323995127. The next prime is 323995141. The reversal of 323995140 is 41599323.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 323995095 and 323995104.

It is not an unprimeable number, because it can be changed into a prime (323995141) 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 39 ways as a sum of consecutive naturals, for example, 2946 + ... + 25625.

Almost surely, 2^323995140 is an apocalyptic number.

323995140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323995140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580811616).

323995140 is an abundant number, since it is smaller than the sum of its proper divisors (837628092).

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

323995140 is a wasteful number, since it uses less digits than its factorization.

323995140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28599 (or 28588 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 323995140 is about 17999.8649994937. The cubic root of 323995140 is about 686.8251113721.

The spelling of 323995140 in words is "three hundred twenty-three million, nine hundred ninety-five thousand, one hundred forty".