20396192 has 24 divisors (see below), whose sum is σ = 42518196. Its totient is φ = 9597952.

The previous prime is 20396191. The next prime is 20396197. The reversal of 20396192 is 29169302.

It can be written as a sum of positive squares in 2 ways, for example, as 20394256 + 1936 = 4516^2 + 44^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (20396191) 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, 18203 + ... + 19290.

Almost surely, 2^20396192 is an apocalyptic number.

It is an amenable number.

20396192 is an abundant number, since it is smaller than the sum of its proper divisors (22122004).

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

20396192 is a wasteful number, since it uses less digits than its factorization.

20396192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37520 (or 37512 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 20396192 is about 4516.2143438947. The cubic root of 20396192 is about 273.2224389862. Note that the first 3 decimals are identical.

The spelling of 20396192 in words is "twenty million, three hundred ninety-six thousand, one hundred ninety-two".