322012240 has 80 divisors (see below), whose sum is σ = 825054336. Its totient is φ = 115904000.

The previous prime is 322012211. The next prime is 322012241. The reversal of 322012240 is 42210223.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322012241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87069 + ... + 90691.

Almost surely, 2^322012240 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 322012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412527168).

322012240 is an abundant number, since it is smaller than the sum of its proper divisors (503042096).

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

322012240 is a wasteful number, since it uses less digits than its factorization.

322012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 322012240 is about 17944.6994959514. The cubic root of 322012240 is about 685.4210848018.

Adding to 322012240 its reverse (42210223), we get a palindrome (364222463).

The spelling of 322012240 in words is "three hundred twenty-two million, twelve thousand, two hundred forty".