421054214203400 has 192 divisors, whose sum is σ = 1046715918393600. Its totient is φ = 157236639580160.

The previous prime is 421054214203387. The next prime is 421054214203409. The reversal of 421054214203400 is 4302412450124.

It is not an unprimeable number, because it can be changed into a prime (421054214203409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13321064 + ... + 31930536.

It is an arithmetic number, because the mean of its divisors is an integer number (5451645408300).

Almost surely, 2^{421054214203400} is an apocalyptic number.

421054214203400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421054214203400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523357959196800).

421054214203400 is an abundant number, since it is smaller than the sum of its proper divisors (625661704190200).

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

421054214203400 is a wasteful number, since it uses less digits than its factorization.

421054214203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18609648 (or 18609639 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 421054214203400 its reverse (4302412450124), we get a palindrome (425356626653524).

The spelling of 421054214203400 in words is "four hundred twenty-one trillion, fifty-four billion, two hundred fourteen million, two hundred three thousand, four hundred".