20424002441 has 4 divisors (see below), whose sum is σ = 20922148884. Its totient is φ = 19925856000.

The previous prime is 20424002429. The next prime is 20424002503. The reversal of 20424002441 is 14420042402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1082146816 + 19341855625 = 32896^2 + 139075^2 .

It is a cyclic number.

It is not a de Polignac number, because 20424002441 - 2¹⁴ = 20423986057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424002941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249073160 + ... + 249073241.

It is an arithmetic number, because the mean of its divisors is an integer number (5230537221).

Almost surely, 2^20424002441 is an apocalyptic number.

It is an amenable number.

20424002441 is a deficient number, since it is larger than the sum of its proper divisors (498146443).

20424002441 is an equidigital number, since it uses as much as digits as its factorization.

20424002441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498146442.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20424002441 its reverse (14420042402), we get a palindrome (34844044843).

The spelling of 20424002441 in words is "twenty billion, four hundred twenty-four million, two thousand, four hundred forty-one".