14509440 has 192 divisors, whose sum is σ = 54896400. Its totient is φ = 3502080.

The previous prime is 14509433. The next prime is 14509459. The reversal of 14509440 is 4490541.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×14509440² = 421047698227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63246 + ... + 63474.

Almost surely, 2^14509440 is an apocalyptic number.

14509440 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 14509440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27448200).

14509440 is an abundant number, since it is smaller than the sum of its proper divisors (40386960).

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

14509440 is a wasteful number, since it uses less digits than its factorization.

14509440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 14509440 is about 3809.1258839792. The cubic root of 14509440 is about 243.9028548156.

Adding to 14509440 its reverse (4490541), we get a palindrome (18999981).

The spelling of 14509440 in words is "fourteen million, five hundred nine thousand, four hundred forty".