420400424044 has 24 divisors (see below), whose sum is σ = 753191586000. Its totient is φ = 205250650560.

The previous prime is 420400424023. The next prime is 420400424047. The reversal of 420400424044 is 440424004024.

It is not an unprimeable number, because it can be changed into a prime (420400424047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5942547 + ... + 6012874.

It is an arithmetic number, because the mean of its divisors is an integer number (31382982750).

Almost surely, 2^420400424044 is an apocalyptic number.

It is an amenable number.

420400424044 is a deficient number, since it is larger than the sum of its proper divisors (332791161956).

420400424044 is a wasteful number, since it uses less digits than its factorization.

420400424044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11955633 (or 11955631 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 420400424044 its reverse (440424004024), we get a palindrome (860824428068).

The spelling of 420400424044 in words is "four hundred twenty billion, four hundred million, four hundred twenty-four thousand, forty-four".