421522454000 has 40 divisors (see below), whose sum is σ = 1019241298608. Its totient is φ = 168608980800.

The previous prime is 421522453969. The next prime is 421522454071. The reversal of 421522454000 is 454225124.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105378614 + ... + 105382613.

Almost surely, 2^421522454000 is an apocalyptic number.

421522454000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421522454000 is an abundant number, since it is smaller than the sum of its proper divisors (597718844608).

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

421522454000 is a wasteful number, since it uses less digits than its factorization.

421522454000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210761250 (or 210761234 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 421522454000 its reverse (454225124), we get a palindrome (421976679124).

The spelling of 421522454000 in words is "four hundred twenty-one billion, five hundred twenty-two million, four hundred fifty-four thousand".