201043440432 has 120 divisors (see below), whose sum is σ = 585366978560. Its totient is φ = 64341889920.

The previous prime is 201043440431. The next prime is 201043440443. The reversal of 201043440432 is 234044340102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201043440396 and 201043440405.

It is not an unprimeable number, because it can be changed into a prime (201043440431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389619 + ... + 744237.

Almost surely, 2^201043440432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201043440432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292683489280).

201043440432 is an abundant number, since it is smaller than the sum of its proper divisors (384323538128).

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

201043440432 is a wasteful number, since it uses less digits than its factorization.

201043440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354791 (or 354782 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201043440432 its reverse (234044340102), we get a palindrome (435087780534).

The spelling of 201043440432 in words is "two hundred one billion, forty-three million, four hundred forty thousand, four hundred thirty-two".