14404140 has 72 divisors (see below), whose sum is σ = 44732688. Its totient is φ = 3749760.

The previous prime is 14404123. The next prime is 14404189. The reversal of 14404140 is 4140441.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6810 + ... + 8670.

Almost surely, 2^14404140 is an apocalyptic number.

14404140 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 14404140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22366344).

14404140 is an abundant number, since it is smaller than the sum of its proper divisors (30328548).

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

14404140 is a wasteful number, since it uses less digits than its factorization.

14404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1914 counting only the distinct ones).

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

The square root of 14404140 is about 3795.2786458968. The cubic root of 14404140 is about 243.3113926966.

Adding to 14404140 its reverse (4140441), we get a palindrome (18544581).

The spelling of 14404140 in words is "fourteen million, four hundred four thousand, one hundred forty".