14272440 has 128 divisors (see below), whose sum is σ = 52738560. Its totient is φ = 3009024.

The previous prime is 14272429. The next prime is 14272441. The reversal of 14272440 is 4427241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 14272440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14272441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10267 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (412020).

Almost surely, 2^14272440 is an apocalyptic number.

14272440 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 14272440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26369280).

14272440 is an abundant number, since it is smaller than the sum of its proper divisors (38466120).

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

14272440 is a wasteful number, since it uses less digits than its factorization.

14272440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 14272440 is about 3777.8882990369. Note that the first 3 decimals coincide. The cubic root of 14272440 is about 242.5675724825.

Adding to 14272440 its reverse (4427241), we get a palindrome (18699681).

The spelling of 14272440 in words is "fourteen million, two hundred seventy-two thousand, four hundred forty".