421014442140 has 144 divisors (see below), whose sum is σ = 1359207446688. Its totient is φ = 105118728192.

The previous prime is 421014442133. The next prime is 421014442141. The reversal of 421014442140 is 41244410124.

It is a happy number.

421014442140 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 1 + 444 + 214 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421014442141) 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, 234139 + ... + 947021.

It is an arithmetic number, because the mean of its divisors is an integer number (9438940602).

Almost surely, 2^421014442140 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 421014442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679603723344).

421014442140 is an abundant number, since it is smaller than the sum of its proper divisors (938193004548).

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

421014442140 is a wasteful number, since it uses less digits than its factorization.

421014442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713108 (or 713103 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 421014442140 its reverse (41244410124), we get a palindrome (462258852264).

The spelling of 421014442140 in words is "four hundred twenty-one billion, fourteen million, four hundred forty-two thousand, one hundred forty".