322143012 has 18 divisors (see below), whose sum is σ = 814306038. Its totient is φ = 107380992.

The previous prime is 322143011. The next prime is 322143071. The reversal of 322143012 is 210341223.

322143012 is a `hidden beast` number, since 3 + 221 + 430 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 274034916 + 48108096 = 16554^2 + 6936^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×322143012³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (322143011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4474173 + ... + 4474244.

Almost surely, 2^322143012 is an apocalyptic number.

It is an amenable number.

322143012 is an abundant number, since it is smaller than the sum of its proper divisors (492163026).

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

322143012 is a wasteful number, since it uses less digits than its factorization.

322143012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8948427 (or 8948422 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 322143012 is about 17948.3428761543. The cubic root of 322143012 is about 685.5138574193.

Adding to 322143012 its reverse (210341223), we get a palindrome (532484235).

The spelling of 322143012 in words is "three hundred twenty-two million, one hundred forty-three thousand, twelve".