14720040 has 96 divisors (see below), whose sum is σ = 49420800. Its totient is φ = 3795840.

The previous prime is 14720033. The next prime is 14720053. The reversal of 14720040 is 4002741.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 14719995 and 14720022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10501 + ... + 11819.

It is an arithmetic number, because the mean of its divisors is an integer number (514800).

Almost surely, 2^14720040 is an apocalyptic number.

14720040 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 14720040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24710400).

14720040 is an abundant number, since it is smaller than the sum of its proper divisors (34700760).

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

14720040 is a wasteful number, since it uses less digits than its factorization.

14720040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 14720040 is about 3836.6704315070. The cubic root of 14720040 is about 245.0772489990.

Adding to 14720040 its reverse (4002741), we get a palindrome (18722781).

The spelling of 14720040 in words is "fourteen million, seven hundred twenty thousand, forty".