14540440 has 32 divisors (see below), whose sum is σ = 34642080. Its totient is φ = 5473792.

The previous prime is 14540429. The next prime is 14540443. The reversal of 14540440 is 4404541.

It is a super-2 number, since 2×14540440² = 422848790787200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14540443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012 + ... + 11371.

It is an arithmetic number, because the mean of its divisors is an integer number (1082565).

Almost surely, 2^14540440 is an apocalyptic number.

14540440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14540440 is an abundant number, since it is smaller than the sum of its proper divisors (20101640).

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

14540440 is a wasteful number, since it uses less digits than its factorization.

14540440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411 (or 21407 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 14540440 is about 3813.1928878566. The cubic root of 14540440 is about 244.0764339957.

Adding to 14540440 its reverse (4404541), we get a palindrome (18944981).

The spelling of 14540440 in words is "fourteen million, five hundred forty thousand, four hundred forty".