20352424 has 32 divisors (see below), whose sum is σ = 40590720. Its totient is φ = 9545536.

The previous prime is 20352421. The next prime is 20352433. The reversal of 20352424 is 42425302.

It is a junction number, because it is equal to n+sod(n) for n = 20352395 and 20352404.

It is not an unprimeable number, because it can be changed into a prime (20352421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8709 + ... + 10795.

It is an arithmetic number, because the mean of its divisors is an integer number (1268460).

Almost surely, 2^20352424 is an apocalyptic number.

It is an amenable number.

20352424 is a deficient number, since it is larger than the sum of its proper divisors (20238296).

20352424 is a wasteful number, since it uses less digits than its factorization.

20352424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20352424 is about 4511.3660902215. The cubic root of 20352424 is about 273.0268638558.

Adding to 20352424 its reverse (42425302), we get a palindrome (62777726).

The spelling of 20352424 in words is "twenty million, three hundred fifty-two thousand, four hundred twenty-four".