402340303320 has 128 divisors (see below), whose sum is σ = 1243272983040. Its totient is φ = 104101401600.

The previous prime is 402340303319. The next prime is 402340303333. The reversal of 402340303320 is 23303043204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 520972 + ... + 1037348.

It is an arithmetic number, because the mean of its divisors is an integer number (9713070180).

Almost surely, 2^402340303320 is an apocalyptic number.

402340303320 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 402340303320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621636491520).

402340303320 is an abundant number, since it is smaller than the sum of its proper divisors (840932679720).

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

402340303320 is a wasteful number, since it uses less digits than its factorization.

402340303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516585 (or 516581 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 402340303320 its reverse (23303043204), we get a palindrome (425643346524).

The spelling of 402340303320 in words is "four hundred two billion, three hundred forty million, three hundred three thousand, three hundred twenty".