14442135252 has 96 divisors (see below), whose sum is σ = 35467407360. Its totient is φ = 4565151360.

The previous prime is 14442135247. The next prime is 14442135293. The reversal of 14442135252 is 25253124441.

It is a super-2 number, since 2×14442135252² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21914899 + ... + 21915557.

It is an arithmetic number, because the mean of its divisors is an integer number (369452160).

Almost surely, 2^14442135252 is an apocalyptic number.

14442135252 is a gapful number since it is divisible by the number (12) 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 14442135252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17733703680).

14442135252 is an abundant number, since it is smaller than the sum of its proper divisors (21025272108).

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

14442135252 is a wasteful number, since it uses less digits than its factorization.

14442135252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1251 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

Adding to 14442135252 its reverse (25253124441), we get a palindrome (39695259693).

The spelling of 14442135252 in words is "fourteen billion, four hundred forty-two million, one hundred thirty-five thousand, two hundred fifty-two".