402223232320 has 224 divisors, whose sum is σ = 1193033334528. Its totient is φ = 125762568192.

The previous prime is 402223232293. The next prime is 402223232321. The reversal of 402223232320 is 23232322204.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402223232321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2333752 + ... + 2500168.

It is an arithmetic number, because the mean of its divisors is an integer number (5326041672).

Almost surely, 2^402223232320 is an apocalyptic number.

402223232320 is a gapful number since it is divisible by the number (40) 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 402223232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596516667264).

402223232320 is an abundant number, since it is smaller than the sum of its proper divisors (790810102208).

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

402223232320 is a wasteful number, since it uses less digits than its factorization.

402223232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166537 (or 166527 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 402223232320 its reverse (23232322204), we get a palindrome (425455554524).

The spelling of 402223232320 in words is "four hundred two billion, two hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty".