422040304100 has 72 divisors (see below), whose sum is σ = 921634011648. Its totient is φ = 167747747200.

The previous prime is 422040304079. The next prime is 422040304109. The reversal of 422040304100 is 1403040224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (422040304109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18076034 + ... + 18099366.

It is an arithmetic number, because the mean of its divisors is an integer number (12800472384).

Almost surely, 2^422040304100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422040304100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460817005824).

422040304100 is an abundant number, since it is smaller than the sum of its proper divisors (499593707548).

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

422040304100 is a wasteful number, since it uses less digits than its factorization.

422040304100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24485 (or 24478 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 422040304100 its reverse (1403040224), we get a palindrome (423443344324).

The spelling of 422040304100 in words is "four hundred twenty-two billion, forty million, three hundred four thousand, one hundred".