20396296 has 16 divisors (see below), whose sum is σ = 38308140. Its totient is φ = 10180800.

The previous prime is 20396281. The next prime is 20396297. The reversal of 20396296 is 69269302.

It can be written as a sum of positive squares in 2 ways, for example, as 20160100 + 236196 = 4490^2 + 486^2 .

It is not an unprimeable number, because it can be changed into a prime (20396297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3790 + ... + 7426.

Almost surely, 2^20396296 is an apocalyptic number.

It is an amenable number.

20396296 is a deficient number, since it is larger than the sum of its proper divisors (17911844).

20396296 is a wasteful number, since it uses less digits than its factorization.

20396296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 20396296 is about 4516.2258579482. The cubic root of 20396296 is about 273.2229033717. Note that the first 3 decimals are identical.

The spelling of 20396296 in words is "twenty million, three hundred ninety-six thousand, two hundred ninety-six".