421000403024432 has 40 divisors (see below), whose sum is σ = 1016962012503552. Its totient is φ = 164026131048000.

The previous prime is 421000403024429. The next prime is 421000403024471. The reversal of 421000403024432 is 234420304000124.

It is a junction number, because it is equal to n+sod(n) for n = 421000403024395 and 421000403024404.

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 7 ways as a sum of consecutive naturals, for example, 170860551944 + ... + 170860554407.

Almost surely, 2^{421000403024432} is an apocalyptic number.

It is an amenable number.

421000403024432 is an abundant number, since it is smaller than the sum of its proper divisors (595961609479120).

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

421000403024432 is a wasteful number, since it uses less digits than its factorization.

421000403024432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341721106377 (or 341721106371 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 421000403024432 its reverse (234420304000124), we get a palindrome (655420707024556).

The spelling of 421000403024432 in words is "four hundred twenty-one trillion, four hundred three million, twenty-four thousand, four hundred thirty-two".