20319896 has 16 divisors (see below), whose sum is σ = 40341240. Its totient is φ = 9562240.

The previous prime is 20319881. The next prime is 20319899. The reversal of 20319896 is 69891302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20319899) 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, 74570 + ... + 74841.

Almost surely, 2^20319896 is an apocalyptic number.

It is an amenable number.

20319896 is a deficient number, since it is larger than the sum of its proper divisors (20021344).

20319896 is a wasteful number, since it uses less digits than its factorization.

20319896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149434 (or 149430 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 20319896 is about 4507.7595321845. The cubic root of 20319896 is about 272.8813324053.

The spelling of 20319896 in words is "twenty million, three hundred nineteen thousand, eight hundred ninety-six".