20424296 has 16 divisors (see below), whose sum is σ = 39331140. Its totient is φ = 9936000.

The previous prime is 20424277. The next prime is 20424301. The reversal of 20424296 is 69242402.

It can be written as a sum of positive squares in 2 ways, for example, as 20160100 + 264196 = 4490^2 + 514^2 .

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, 34205 + ... + 34796.

Almost surely, 2^20424296 is an apocalyptic number.

It is an amenable number.

20424296 is a deficient number, since it is larger than the sum of its proper divisors (18906844).

20424296 is a wasteful number, since it uses less digits than its factorization.

20424296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69044 (or 69040 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20424296 is about 4519.3247283195. The cubic root of 20424296 is about 273.3478728468.

Adding to 20424296 its reverse (69242402), we get a palindrome (89666698).

The spelling of 20424296 in words is "twenty million, four hundred twenty-four thousand, two hundred ninety-six".