20024240405 has 32 divisors (see below), whose sum is σ = 26380505088. Its totient is φ = 14501894400.

The previous prime is 20024240393. The next prime is 20024240477. The reversal of 20024240405 is 50404242002.

It is not a de Polignac number, because 20024240405 - 2⁴ = 20024240389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 870107 + ... + 892823.

It is an arithmetic number, because the mean of its divisors is an integer number (824390784).

Almost surely, 2^20024240405 is an apocalyptic number.

It is an amenable number.

20024240405 is a deficient number, since it is larger than the sum of its proper divisors (6356264683).

20024240405 is a wasteful number, since it uses less digits than its factorization.

20024240405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22997.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 20024240405 its reverse (50404242002), we get a palindrome (70428482407).

The spelling of 20024240405 in words is "twenty billion, twenty-four million, two hundred forty thousand, four hundred five".