14400240 has 80 divisors (see below), whose sum is σ = 46202400. Its totient is φ = 3705856.

The previous prime is 14400223. The next prime is 14400247. The reversal of 14400240 is 4200441.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14400247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5926 + ... + 7994.

It is an arithmetic number, because the mean of its divisors is an integer number (577530).

Almost surely, 2^14400240 is an apocalyptic number.

14400240 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 14400240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23101200).

14400240 is an abundant number, since it is smaller than the sum of its proper divisors (31802160).

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

14400240 is a wasteful number, since it uses less digits than its factorization.

14400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 14400240 is about 3794.7648148469. The cubic root of 14400240 is about 243.2894314159.

Adding to 14400240 its reverse (4200441), we get a palindrome (18600681).

The spelling of 14400240 in words is "fourteen million, four hundred thousand, two hundred forty".