13420444450 has 48 divisors (see below), whose sum is σ = 28687538880. Its totient is φ = 4575568320.

The previous prime is 13420444441. The next prime is 13420444493. The reversal of 13420444450 is 5444402431.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44457 + ... + 169756.

It is an arithmetic number, because the mean of its divisors is an integer number (597657060).

Almost surely, 2^13420444450 is an apocalyptic number.

13420444450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13420444450 is an abundant number, since it is smaller than the sum of its proper divisors (15267094430).

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

13420444450 is a wasteful number, since it uses less digits than its factorization.

13420444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214411 (or 214406 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 13420444450 its reverse (5444402431), we get a palindrome (18864846881).

The spelling of 13420444450 in words is "thirteen billion, four hundred twenty million, four hundred forty-four thousand, four hundred fifty".