14421420 has 72 divisors (see below), whose sum is σ = 47117616. Its totient is φ = 3549312.

The previous prime is 14421419. The next prime is 14421443. The reversal of 14421420 is 2412441.

14421420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 14421393 and 14421402.

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, 742 + ... + 5421.

Almost surely, 2^14421420 is an apocalyptic number.

14421420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14421420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23558808).

14421420 is an abundant number, since it is smaller than the sum of its proper divisors (32696196).

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

14421420 is a wasteful number, since it uses less digits than its factorization.

14421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191 (or 6186 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 14421420 is about 3797.5544762386. The cubic root of 14421420 is about 243.4086503994.

Adding to 14421420 its reverse (2412441), we get a palindrome (16833861).

It can be divided in two parts, 14421 and 420, that added together give a palindrome (14841).

The spelling of 14421420 in words is "fourteen million, four hundred twenty-one thousand, four hundred twenty".