21410200242 has 24 divisors (see below), whose sum is σ = 46397137644. Its totient is φ = 7135445664.

The previous prime is 21410200241. The next prime is 21410200261. The reversal of 21410200242 is 24200201412.

21410200242 is a `hidden beast` number, since 214 + 10 + 200 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17880770961 + 3529429281 = 133719^2 + 59409^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21410200241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993 + ... + 206940.

Almost surely, 2^21410200242 is an apocalyptic number.

21410200242 is an abundant number, since it is smaller than the sum of its proper divisors (24986937402).

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

21410200242 is a wasteful number, since it uses less digits than its factorization.

21410200242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214634 (or 214631 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 21410200242 its reverse (24200201412), we get a palindrome (45610401654).

The spelling of 21410200242 in words is "twenty-one billion, four hundred ten million, two hundred thousand, two hundred forty-two".