240020024421 has 16 divisors (see below), whose sum is σ = 321295201920. Its totient is φ = 159379295040.

The previous prime is 240020024411. The next prime is 240020024441. The reversal of 240020024421 is 124420020042.

It is not a de Polignac number, because 240020024421 - 2¹⁴ = 240020008037 is a prime.

It is a super-2 number, since 2×240020024421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240020024411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5745991 + ... + 5787611.

It is an arithmetic number, because the mean of its divisors is an integer number (20080950120).

Almost surely, 2^240020024421 is an apocalyptic number.

It is an amenable number.

240020024421 is a deficient number, since it is larger than the sum of its proper divisors (81275177499).

240020024421 is a wasteful number, since it uses less digits than its factorization.

240020024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49196.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 240020024421 its reverse (124420020042), we get a palindrome (364440044463).

The spelling of 240020024421 in words is "two hundred forty billion, twenty million, twenty-four thousand, four hundred twenty-one".