322572740 has 48 divisors (see below), whose sum is σ = 776625024. Its totient is φ = 110246400.

The previous prime is 322572737. The next prime is 322572749. The reversal of 322572740 is 47275223.

It is a super-2 number, since 2×322572740² = 208106345182215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 322572697 and 322572706.

It is not an unprimeable number, because it can be changed into a prime (322572749) 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, 42860 + ... + 49820.

It is an arithmetic number, because the mean of its divisors is an integer number (16179688).

Almost surely, 2^322572740 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 322572740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388312512).

322572740 is an abundant number, since it is smaller than the sum of its proper divisors (454052284).

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

322572740 is a wasteful number, since it uses less digits than its factorization.

322572740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308 (or 7306 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 322572740 is about 17960.3101309526. The cubic root of 322572740 is about 685.8185394977.

The spelling of 322572740 in words is "three hundred twenty-two million, five hundred seventy-two thousand, seven hundred forty".