201400243044 has 384 divisors, whose sum is σ = 652522020864. Its totient is φ = 46656000000.

The previous prime is 201400243039. The next prime is 201400243103. The reversal of 201400243044 is 440342004102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67109544 + ... + 67112544.

It is an arithmetic number, because the mean of its divisors is an integer number (1699276096).

Almost surely, 2^201400243044 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 201400243044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326261010432).

201400243044 is an abundant number, since it is smaller than the sum of its proper divisors (451121777820).

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

201400243044 is a wasteful number, since it uses less digits than its factorization.

201400243044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227 (or 3225 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 201400243044 its reverse (440342004102), we get a palindrome (641742247146).

It can be divided in two parts, 201400 and 243044, that added together give a palindrome (444444).

The spelling of 201400243044 in words is "two hundred one billion, four hundred million, two hundred forty-three thousand, forty-four".