201084252440 has 64 divisors (see below), whose sum is σ = 455380833600. Its totient is φ = 79911305728.

The previous prime is 201084252419. The next prime is 201084252443. The reversal of 201084252440 is 44252480102.

It is a junction number, because it is equal to n+sod(n) for n = 201084252397 and 201084252406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201084252443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15417602 + ... + 15430638.

It is an arithmetic number, because the mean of its divisors is an integer number (7115325525).

Almost surely, 2^201084252440 is an apocalyptic number.

201084252440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201084252440 is an abundant number, since it is smaller than the sum of its proper divisors (254296581160).

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

201084252440 is a wasteful number, since it uses less digits than its factorization.

201084252440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15524 (or 15520 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The spelling of 201084252440 in words is "two hundred one billion, eighty-four million, two hundred fifty-two thousand, four hundred forty".