421502141140 has 24 divisors (see below), whose sum is σ = 888827346792. Its totient is φ = 167901265920.

The previous prime is 421502141113. The next prime is 421502141141. The reversal of 421502141140 is 41141205124.

It can be written as a sum of positive squares in 4 ways, for example, as 67331946256 + 354170194884 = 259484^2 + 595122^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421502141141) by changing a digit.

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, 43719469 + ... + 43729108.

It is an arithmetic number, because the mean of its divisors is an integer number (37034472783).

Almost surely, 2^421502141140 is an apocalyptic number.

It is an amenable number.

421502141140 is an abundant number, since it is smaller than the sum of its proper divisors (467325205652).

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

421502141140 is a wasteful number, since it uses less digits than its factorization.

421502141140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87448827 (or 87448825 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 421502141140 its reverse (41141205124), we get a palindrome (462643346264).

The spelling of 421502141140 in words is "four hundred twenty-one billion, five hundred two million, one hundred forty-one thousand, one hundred forty".