201260423040 has 128 divisors (see below), whose sum is σ = 641789222400. Its totient is φ = 53646723072.

The previous prime is 201260423027. The next prime is 201260423057. The reversal of 201260423040 is 40324062102.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 201260423040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4784821 + ... + 4826699.

It is an arithmetic number, because the mean of its divisors is an integer number (5013978300).

Almost surely, 2^201260423040 is an apocalyptic number.

201260423040 is a gapful number since it is divisible by the number (20) 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 201260423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320894611200).

201260423040 is an abundant number, since it is smaller than the sum of its proper divisors (440528799360).

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

201260423040 is a wasteful number, since it uses less digits than its factorization.

201260423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44404 (or 44392 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 201260423040 its reverse (40324062102), we get a palindrome (241584485142).

The spelling of 201260423040 in words is "two hundred one billion, two hundred sixty million, four hundred twenty-three thousand, forty".