421335250384 has 10 divisors (see below), whose sum is σ = 816337047650. Its totient is φ = 210667625184.

The previous prime is 421335250379. The next prime is 421335250387. The reversal of 421335250384 is 483052533124.

It can be written as a sum of positive squares in only one way, i.e., 239637662784 + 181697587600 = 489528^2 + 426260^2 .

It is a super-2 number, since 2×421335250384² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421335250387) 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 as a sum of consecutive naturals, namely, 13166726559 + ... + 13166726590.

It is an arithmetic number, because the mean of its divisors is an integer number (81633704765).

Almost surely, 2^421335250384 is an apocalyptic number.

It is an amenable number.

421335250384 is a deficient number, since it is larger than the sum of its proper divisors (395001797266).

421335250384 is a wasteful number, since it uses less digits than its factorization.

421335250384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26333453157 (or 26333453151 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 421335250384 in words is "four hundred twenty-one billion, three hundred thirty-five million, two hundred fifty thousand, three hundred eighty-four".