421353013444 has 12 divisors (see below), whose sum is σ = 804401207568. Its totient is φ = 191524097000.

The previous prime is 421353013349. The next prime is 421353013541. The reversal of 421353013444 is 444310353124.

It is a super-2 number, since 2×421353013444² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4788102382 + ... + 4788102469.

It is an arithmetic number, because the mean of its divisors is an integer number (67033433964).

Almost surely, 2^421353013444 is an apocalyptic number.

421353013444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421353013444 is a deficient number, since it is larger than the sum of its proper divisors (383048194124).

421353013444 is a wasteful number, since it uses less digits than its factorization.

421353013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576204866 (or 9576204864 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 421353013444 its reverse (444310353124), we get a palindrome (865663366568).

The spelling of 421353013444 in words is "four hundred twenty-one billion, three hundred fifty-three million, thirteen thousand, four hundred forty-four".