421104440422 has 16 divisors (see below), whose sum is σ = 659181035520. Its totient is φ = 201379124232.

The previous prime is 421104440387. The next prime is 421104440437. The reversal of 421104440422 is 224044401124.

It is a happy number.

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, 84763 + ... + 921625.

It is an arithmetic number, because the mean of its divisors is an integer number (41198814720).

Almost surely, 2^421104440422 is an apocalyptic number.

421104440422 is a deficient number, since it is larger than the sum of its proper divisors (238076595098).

421104440422 is a wasteful number, since it uses less digits than its factorization.

421104440422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847827.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 421104440422 its reverse (224044401124), we get a palindrome (645148841546).

The spelling of 421104440422 in words is "four hundred twenty-one billion, one hundred four million, four hundred forty thousand, four hundred twenty-two".