14525421240 has 128 divisors (see below), whose sum is σ = 47568384000. Its totient is φ = 3519045120.

The previous prime is 14525421233. The next prime is 14525421241. The reversal of 14525421240 is 4212452541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14525421198 and 14525421207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14525421241) 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, 3024361 + ... + 3029159.

It is an arithmetic number, because the mean of its divisors is an integer number (371628000).

Almost surely, 2^14525421240 is an apocalyptic number.

14525421240 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 14525421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23784192000).

14525421240 is an abundant number, since it is smaller than the sum of its proper divisors (33042962760).

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

14525421240 is a wasteful number, since it uses less digits than its factorization.

14525421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117 (or 7113 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 14525421240 its reverse (4212452541), we get a palindrome (18737873781).

The spelling of 14525421240 in words is "fourteen billion, five hundred twenty-five million, four hundred twenty-one thousand, two hundred forty".