14000021532 has 120 divisors (see below), whose sum is σ = 41965556864. Its totient is φ = 3986778528.

The previous prime is 14000021521. The next prime is 14000021537. The reversal of 14000021532 is 23512000041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14000021537) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 686223 + ... + 706329.

Almost surely, 2^14000021532 is an apocalyptic number.

14000021532 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 14000021532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20982778432).

14000021532 is an abundant number, since it is smaller than the sum of its proper divisors (27965535332).

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

14000021532 is a wasteful number, since it uses less digits than its factorization.

14000021532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20437 (or 20426 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 14000021532 its reverse (23512000041), we get a palindrome (37512021573).

The spelling of 14000021532 in words is "fourteen billion, twenty-one thousand, five hundred thirty-two".