320002422240 has 48 divisors (see below), whose sum is σ = 1008007631568. Its totient is φ = 85333979136.

The previous prime is 320002422221. The next prime is 320002422241. The reversal of 320002422240 is 42224200023.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320002422241) 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, 333335377 + ... + 333336336.

It is an arithmetic number, because the mean of its divisors is an integer number (21000158991).

Almost surely, 2^320002422240 is an apocalyptic number.

320002422240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320002422240 is an abundant number, since it is smaller than the sum of its proper divisors (688005209328).

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

320002422240 is a wasteful number, since it uses less digits than its factorization.

320002422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666671731 (or 666671723 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 320002422240 its reverse (42224200023), we get a palindrome (362226622263).

The spelling of 320002422240 in words is "three hundred twenty billion, two million, four hundred twenty-two thousand, two hundred forty".