322530072 has 32 divisors (see below), whose sum is σ = 806830080. Its totient is φ = 107442720.

The previous prime is 322530071. The next prime is 322530077. The reversal of 322530072 is 270035223.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322530071) 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, 48297 + ... + 54567.

It is an arithmetic number, because the mean of its divisors is an integer number (25213440).

Almost surely, 2^322530072 is an apocalyptic number.

It is an amenable number.

322530072 is an abundant number, since it is smaller than the sum of its proper divisors (484300008).

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

322530072 is a wasteful number, since it uses less digits than its factorization.

322530072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423 (or 8419 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 322530072 is about 17959.1222502660. The cubic root of 322530072 is about 685.7882995010.

Adding to 322530072 its reverse (270035223), we get a palindrome (592565295).

The spelling of 322530072 in words is "three hundred twenty-two million, five hundred thirty thousand, seventy-two".