421604403280 has 40 divisors (see below), whose sum is σ = 982901233152. Its totient is φ = 168182235264.

The previous prime is 421604403263. The next prime is 421604403293. The reversal of 421604403280 is 82304406124.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7150552 + ... + 7209271.

Almost surely, 2^421604403280 is an apocalyptic number.

421604403280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421604403280 is an abundant number, since it is smaller than the sum of its proper divisors (561296829872).

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

421604403280 is a wasteful number, since it uses less digits than its factorization.

421604403280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360203 (or 14360197 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 421604403280 in words is "four hundred twenty-one billion, six hundred four million, four hundred three thousand, two hundred eighty".