21440000143332 has 36 divisors (see below), whose sum is σ = 54209629380816. Its totient is φ = 7144810873200.

The previous prime is 21440000143327. The next prime is 21440000143339. The reversal of 21440000143332 is 23334100004412.

21440000143332 is a `hidden beast` number, since 214 + 400 + 0 + 0 + 1 + 43 + 3 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×21440000143332² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21440000143296 and 21440000143305.

It is not an unprimeable number, because it can be changed into a prime (21440000143339) 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, 77186158 + ... + 77463429.

It is an arithmetic number, because the mean of its divisors is an integer number (1505823038356).

Almost surely, 2^{21440000143332} is an apocalyptic number.

It is an amenable number.

21440000143332 is an abundant number, since it is smaller than the sum of its proper divisors (32769629237484).

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

21440000143332 is a wasteful number, since it uses less digits than its factorization.

21440000143332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154653448 (or 154653443 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21440000143332 its reverse (23334100004412), we get a palindrome (44774100147744).

The spelling of 21440000143332 in words is "twenty-one trillion, four hundred forty billion, one hundred forty-three thousand, three hundred thirty-two".