421334448472 has 64 divisors (see below), whose sum is σ = 991699315200. Its totient is φ = 163630368000.

The previous prime is 421334448467. The next prime is 421334448517. The reversal of 421334448472 is 274844433124.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8584029 + ... + 8632972.

It is an arithmetic number, because the mean of its divisors is an integer number (15495301800).

Almost surely, 2^421334448472 is an apocalyptic number.

It is an amenable number.

421334448472 is an abundant number, since it is smaller than the sum of its proper divisors (570364866728).

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

421334448472 is a wasteful number, since it uses less digits than its factorization.

421334448472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17217056 (or 17217052 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 46.

The spelling of 421334448472 in words is "four hundred twenty-one billion, three hundred thirty-four million, four hundred forty-eight thousand, four hundred seventy-two".