20396196 has 36 divisors (see below), whose sum is σ = 54272400. Its totient is φ = 6440688.

The previous prime is 20396191. The next prime is 20396197. The reversal of 20396196 is 69169302.

20396196 is a `hidden beast` number, since 2 + 0 + 39 + 619 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20396196² = 832009622540832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20396196.

It is not an unprimeable number, because it can be changed into a prime (20396191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14226 + ... + 15593.

Almost surely, 2^20396196 is an apocalyptic number.

It is an amenable number.

20396196 is an abundant number, since it is smaller than the sum of its proper divisors (33876204).

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

20396196 is a wasteful number, since it uses less digits than its factorization.

20396196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29848 (or 29843 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 20396196 is about 4516.2147867434. The cubic root of 20396196 is about 273.2224568472. Note that the first 3 decimals are identical.

The spelling of 20396196 in words is "twenty million, three hundred ninety-six thousand, one hundred ninety-six".