20519796 has 24 divisors (see below), whose sum is σ = 52232544. Its totient is φ = 6218080.

The previous prime is 20519773. The next prime is 20519801. The reversal of 20519796 is 69791502.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 77595 + ... + 77858.

It is an arithmetic number, because the mean of its divisors is an integer number (2176356).

Almost surely, 2^20519796 is an apocalyptic number.

It is an amenable number.

20519796 is an abundant number, since it is smaller than the sum of its proper divisors (31712748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20519796 is a wasteful number, since it uses less digits than its factorization.

20519796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155471 (or 155469 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 20519796 is about 4529.8781440564. The cubic root of 20519796 is about 273.7732508764.

The spelling of 20519796 in words is "twenty million, five hundred nineteen thousand, seven hundred ninety-six".