421344441333 has 16 divisors (see below), whose sum is σ = 624348039040. Its totient is φ = 280835970912.

The previous prime is 421344441317. The next prime is 421344441337. The reversal of 421344441333 is 333144443124.

421344441333 is a `hidden beast` number, since 42 + 134 + 44 + 413 + 33 = 666.

It is not a de Polignac number, because 421344441333 - 2⁴ = 421344441317 is a prime.

It is a super-2 number, since 2×421344441333² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421344441337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547416 + ... + 1799217.

It is an arithmetic number, because the mean of its divisors is an integer number (39021752440).

Almost surely, 2^421344441333 is an apocalyptic number.

It is an amenable number.

421344441333 is a deficient number, since it is larger than the sum of its proper divisors (203003597707).

421344441333 is a wasteful number, since it uses less digits than its factorization.

421344441333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351305 (or 3351299 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 421344441333 its reverse (333144443124), we get a palindrome (754488884457).

The spelling of 421344441333 in words is "four hundred twenty-one billion, three hundred forty-four million, four hundred forty-one thousand, three hundred thirty-three".