14428240 has 60 divisors (see below), whose sum is σ = 35867124. Its totient is φ = 5379072.

The previous prime is 14428229. The next prime is 14428241. The reversal of 14428240 is 4282441.

It can be written as a sum of positive squares in 2 ways, for example, as 8317456 + 6110784 = 2884^2 + 2472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14428241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140029 + ... + 140131.

Almost surely, 2^14428240 is an apocalyptic number.

14428240 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 14428240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17933562).

14428240 is an abundant number, since it is smaller than the sum of its proper divisors (21438884).

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

14428240 is a wasteful number, since it uses less digits than its factorization.

14428240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 14428240 is about 3798.4523164047. The cubic root of 14428240 is about 243.4470142910.

The spelling of 14428240 in words is "fourteen million, four hundred twenty-eight thousand, two hundred forty".