322740285420 has 96 divisors (see below), whose sum is σ = 1034106006528. Its totient is φ = 73673701632.

The previous prime is 322740285397. The next prime is 322740285457. The reversal of 322740285420 is 24582047223.

It is a super-2 number, since 2×322740285420² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172384 + ... + 821703.

It is an arithmetic number, because the mean of its divisors is an integer number (10771937568).

Almost surely, 2^322740285420 is an apocalyptic number.

322740285420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322740285420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517053003264).

322740285420 is an abundant number, since it is smaller than the sum of its proper divisors (711365721108).

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

322740285420 is a wasteful number, since it uses less digits than its factorization.

322740285420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994879 (or 994877 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 322740285420 in words is "three hundred twenty-two billion, seven hundred forty million, two hundred eighty-five thousand, four hundred twenty".