402301230320 has 160 divisors (see below), whose sum is σ = 1065776071680. Its totient is φ = 139795589120.

The previous prime is 402301230319. The next prime is 402301230329. The reversal of 402301230320 is 23032103204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 402301230292 and 402301230301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402301230329) 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, 22194221 + ... + 22212339.

It is an arithmetic number, because the mean of its divisors is an integer number (6661100448).

Almost surely, 2^402301230320 is an apocalyptic number.

402301230320 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 402301230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532888035840).

402301230320 is an abundant number, since it is smaller than the sum of its proper divisors (663474841360).

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

402301230320 is a wasteful number, since it uses less digits than its factorization.

402301230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19263 (or 19257 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 402301230320 its reverse (23032103204), we get a palindrome (425333333524).

The spelling of 402301230320 in words is "four hundred two billion, three hundred one million, two hundred thirty thousand, three hundred twenty".