210340441052540 has 24 divisors (see below), whose sum is σ = 441715305459120. Its totient is φ = 84136104183168.

The previous prime is 210340441052531. The next prime is 210340441052543. The reversal of 210340441052540 is 45250144043012.

It is a happy number.

It is a super-3 number, since 3×210340441052540³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 210340441052540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210340441052543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23645759 + ... + 31301801.

It is an arithmetic number, because the mean of its divisors is an integer number (18404804394130).

Almost surely, 2^{210340441052540} is an apocalyptic number.

210340441052540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210340441052540 is an abundant number, since it is smaller than the sum of its proper divisors (231374864406580).

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

210340441052540 is a wasteful number, since it uses less digits than its factorization.

210340441052540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029741 (or 9029739 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 210340441052540 its reverse (45250144043012), we get a palindrome (255590585095552).

The spelling of 210340441052540 in words is "two hundred ten trillion, three hundred forty billion, four hundred forty-one million, fifty-two thousand, five hundred forty".