240213410421 has 64 divisors (see below), whose sum is σ = 368076441600. Its totient is φ = 138520166400.

The previous prime is 240213410417. The next prime is 240213410477. The reversal of 240213410421 is 124014312042.

It is not a de Polignac number, because 240213410421 - 2² = 240213410417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240213410391 and 240213410400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240213410401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2753845 + ... + 2839733.

It is an arithmetic number, because the mean of its divisors is an integer number (5751194400).

Almost surely, 2^240213410421 is an apocalyptic number.

It is an amenable number.

240213410421 is a deficient number, since it is larger than the sum of its proper divisors (127863031179).

240213410421 is a wasteful number, since it uses less digits than its factorization.

240213410421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86030.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 240213410421 its reverse (124014312042), we get a palindrome (364227722463).

The spelling of 240213410421 in words is "two hundred forty billion, two hundred thirteen million, four hundred ten thousand, four hundred twenty-one".