200440042420 has 24 divisors (see below), whose sum is σ = 434502286848. Its totient is φ = 77589693600.

The previous prime is 200440042417. The next prime is 200440042459. The reversal of 200440042420 is 24240044002.

200440042420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 200440042391 and 200440042400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161644576 + ... + 161645815.

It is an arithmetic number, because the mean of its divisors is an integer number (18104261952).

Almost surely, 2^200440042420 is an apocalyptic number.

200440042420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200440042420 is an abundant number, since it is smaller than the sum of its proper divisors (234062244428).

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

200440042420 is a wasteful number, since it uses less digits than its factorization.

200440042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323290431 (or 323290429 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 200440042420 its reverse (24240044002), we get a palindrome (224680086422).

The spelling of 200440042420 in words is "two hundred billion, four hundred forty million, forty-two thousand, four hundred twenty".