421042334344044 has 48 divisors (see below), whose sum is σ = 1122780697602816. Its totient is φ = 120297687739200.

The previous prime is 421042334344039. The next prime is 421042334344063. The reversal of 421042334344044 is 440443433240124.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 421042334343987 and 421042334344005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110414799 + ... + 114164409.

It is an arithmetic number, because the mean of its divisors is an integer number (23391264533392).

Almost surely, 2^{421042334344044} is an apocalyptic number.

It is an amenable number.

421042334344044 is an abundant number, since it is smaller than the sum of its proper divisors (701738363258772).

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

421042334344044 is a wasteful number, since it uses less digits than its factorization.

421042334344044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086406 (or 5086404 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 42.

Adding to 421042334344044 its reverse (440443433240124), we get a palindrome (861485767584168).

The spelling of 421042334344044 in words is "four hundred twenty-one trillion, forty-two billion, three hundred thirty-four million, three hundred forty-four thousand, forty-four".