20202400424 has 16 divisors (see below), whose sum is σ = 37900444320. Its totient is φ = 10095615280.

The previous prime is 20202400417. The next prime is 20202400433. The reversal of 20202400424 is 42400420202.

It is a junction number, because it is equal to n+sod(n) for n = 20202400396 and 20202400405.

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 3 ways as a sum of consecutive naturals, for example, 682724 + ... + 711699.

It is an arithmetic number, because the mean of its divisors is an integer number (2368777770).

Almost surely, 2^20202400424 is an apocalyptic number.

It is an amenable number.

20202400424 is a deficient number, since it is larger than the sum of its proper divisors (17698043896).

20202400424 is a wasteful number, since it uses less digits than its factorization.

20202400424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396240 (or 1396236 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20202400424 its reverse (42400420202), we get a palindrome (62602820626).

The spelling of 20202400424 in words is "twenty billion, two hundred two million, four hundred thousand, four hundred twenty-four".