421324500453340 has 96 divisors (see below), whose sum is σ = 968385422366208. Its totient is φ = 152705872800000.

The previous prime is 421324500453331. The next prime is 421324500453361. The reversal of 421324500453340 is 43354005423124.

It is a junction number, because it is equal to n+sod(n) for n = 421324500453293 and 421324500453302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4170612030 + ... + 4170713050.

It is an arithmetic number, because the mean of its divisors is an integer number (10087348149648).

Almost surely, 2^{421324500453340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421324500453340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484192711183104).

421324500453340 is an abundant number, since it is smaller than the sum of its proper divisors (547060921912868).

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

421324500453340 is a wasteful number, since it uses less digits than its factorization.

421324500453340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163099 (or 163097 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 421324500453340 its reverse (43354005423124), we get a palindrome (464678505876464).

The spelling of 421324500453340 in words is "four hundred twenty-one trillion, three hundred twenty-four billion, five hundred million, four hundred fifty-three thousand, three hundred forty".