322323140 has 24 divisors (see below), whose sum is σ = 693389592. Its totient is φ = 125784320.

The previous prime is 322323119. The next prime is 322323149. The reversal of 322323140 is 41323223.

It can be written as a sum of positive squares in 4 ways, for example, as 10023556 + 312299584 = 3166^2 + 17672^2 .

It is a super-3 number, since 3×322323140³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (322323149) 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, 195719 + ... + 197358.

It is an arithmetic number, because the mean of its divisors is an integer number (28891233).

Almost surely, 2^322323140 is an apocalyptic number.

It is an amenable number.

322323140 is an abundant number, since it is smaller than the sum of its proper divisors (371066452).

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

322323140 is a wasteful number, since it uses less digits than its factorization.

322323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393127 (or 393125 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 322323140 is about 17953.3601311844. The cubic root of 322323140 is about 685.6416032007.

Adding to 322323140 its reverse (41323223), we get a palindrome (363646363).

The spelling of 322323140 in words is "three hundred twenty-two million, three hundred twenty-three thousand, one hundred forty".