14239540 has 96 divisors (see below), whose sum is σ = 37545984. Its totient is φ = 4423680.

The previous prime is 14239529. The next prime is 14239541. The reversal of 14239540 is 4593241.

14239540 = T₆₉ + T₇₀ + ... + T₄₄₀.

14239540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 14239499 and 14239508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14239541) 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, 73684 + ... + 73876.

It is an arithmetic number, because the mean of its divisors is an integer number (391104).

Almost surely, 2^14239540 is an apocalyptic number.

14239540 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 14239540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18772992).

14239540 is an abundant number, since it is smaller than the sum of its proper divisors (23306444).

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

14239540 is a wasteful number, since it uses less digits than its factorization.

14239540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 14239540 is about 3773.5315024523. The cubic root of 14239540 is about 242.3810448567.

The spelling of 14239540 in words is "fourteen million, two hundred thirty-nine thousand, five hundred forty".