402032304550020 has 48 divisors (see below), whose sum is σ = 1144769951949120. Its totient is φ = 105391519383936.

The previous prime is 402032304550013. The next prime is 402032304550057. The reversal of 402032304550020 is 20055403230204.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 402032304550020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56784220267 + ... + 56784227346.

It is an arithmetic number, because the mean of its divisors is an integer number (23849373998940).

Almost surely, 2^{402032304550020} is an apocalyptic number.

It is an amenable number.

402032304550020 is an abundant number, since it is smaller than the sum of its proper divisors (742737647399100).

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

402032304550020 is a wasteful number, since it uses less digits than its factorization.

402032304550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113568447684 (or 113568447682 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 402032304550020 its reverse (20055403230204), we get a palindrome (422087707780224).

The spelling of 402032304550020 in words is "four hundred two trillion, thirty-two billion, three hundred four million, five hundred fifty thousand, twenty".