220400404242 has 8 divisors (see below), whose sum is σ = 440800808496. Its totient is φ = 73466801412.

The previous prime is 220400404223. The next prime is 220400404243. The reversal of 220400404242 is 242404004022.

It is a sphenic number, since it is the product of 3 distinct primes.

220400404242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (220400404243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18366700348 + ... + 18366700359.

It is an arithmetic number, because the mean of its divisors is an integer number (55100101062).

Almost surely, 2^220400404242 is an apocalyptic number.

220400404242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220400404242 is a wasteful number, since it uses less digits than its factorization.

220400404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36733400712.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 220400404242 its reverse (242404004022), we get a palindrome (462804408264).

The spelling of 220400404242 in words is "two hundred twenty billion, four hundred million, four hundred four thousand, two hundred forty-two".