20424223242 has 24 divisors (see below), whose sum is σ = 46581562560. Its totient is φ = 6449754600.

The previous prime is 20424223217. The next prime is 20424223271. The reversal of 20424223242 is 24232242402.

20424223242 is a `hidden beast` number, since 2 + 0 + 424 + 2 + 232 + 4 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29859634 + ... + 29860317.

It is an arithmetic number, because the mean of its divisors is an integer number (1940898440).

Almost surely, 2^20424223242 is an apocalyptic number.

20424223242 is an abundant number, since it is smaller than the sum of its proper divisors (26157339318).

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

20424223242 is a wasteful number, since it uses less digits than its factorization.

20424223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59719978 (or 59719975 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20424223242 its reverse (24232242402), we get a palindrome (44656465644).

The spelling of 20424223242 in words is "twenty billion, four hundred twenty-four million, two hundred twenty-three thousand, two hundred forty-two".