14404403421 has 20 divisors (see below), whose sum is σ = 21870445564. Its totient is φ = 9445507200.

The previous prime is 14404403417. The next prime is 14404403473. The reversal of 14404403421 is 12430440441.

14404403421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7164776025 + 7239627396 = 84645^2 + 85086^2 .

It is not a de Polignac number, because 14404403421 - 2² = 14404403417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14404403021) 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 19 ways as a sum of consecutive naturals, for example, 1452700 + ... + 1462581.

Almost surely, 2^14404403421 is an apocalyptic number.

It is an amenable number.

14404403421 is a deficient number, since it is larger than the sum of its proper divisors (7466042143).

14404403421 is an equidigital number, since it uses as much as digits as its factorization.

14404403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915354 (or 2915345 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 14404403421 its reverse (12430440441), we get a palindrome (26834843862).

The spelling of 14404403421 in words is "fourteen billion, four hundred four million, four hundred three thousand, four hundred twenty-one".