405120020254302 has 32 divisors (see below), whose sum is σ = 838925727857280. Its totient is φ = 130267351922400.

The previous prime is 405120020254217. The next prime is 405120020254307. The reversal of 405120020254302 is 203452020021504.

It is a self number, because there is not a number n which added to its sum of digits gives 405120020254302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405120020254307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036436824 + ... + 1036827627.

It is an arithmetic number, because the mean of its divisors is an integer number (26216428995540).

Almost surely, 2^{405120020254302} is an apocalyptic number.

405120020254302 is an abundant number, since it is smaller than the sum of its proper divisors (433805707602978).

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

405120020254302 is a wasteful number, since it uses less digits than its factorization.

405120020254302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073265608.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 405120020254302 its reverse (203452020021504), we get a palindrome (608572040275806).

The spelling of 405120020254302 in words is "four hundred five trillion, one hundred twenty billion, twenty million, two hundred fifty-four thousand, three hundred two".