202030340400420 has 192 divisors, whose sum is σ = 660430599413760. Its totient is φ = 45183643319808.

The previous prime is 202030340400391. The next prime is 202030340400457. The reversal of 202030340400420 is 24004043030202.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71835967 + ... + 74595353.

It is an arithmetic number, because the mean of its divisors is an integer number (3439742705280).

Almost surely, 2^{202030340400420} is an apocalyptic number.

202030340400420 is a gapful number since it is divisible by the number (20) 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 202030340400420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330215299706880).

202030340400420 is an abundant number, since it is smaller than the sum of its proper divisors (458400259013340).

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

202030340400420 is a wasteful number, since it uses less digits than its factorization.

202030340400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763162 (or 2763160 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 202030340400420 its reverse (24004043030202), we get a palindrome (226034383430622).

The spelling of 202030340400420 in words is "two hundred two trillion, thirty billion, three hundred forty million, four hundred thousand, four hundred twenty".