196815804 has 12 divisors (see below), whose sum is σ = 459236904. Its totient is φ = 65605264.

The previous prime is 196815769. The next prime is 196815809. The reversal of 196815804 is 408518691.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196815809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8200647 + ... + 8200670.

It is an arithmetic number, because the mean of its divisors is an integer number (38269742).

Almost surely, 2^196815804 is an apocalyptic number.

It is an amenable number.

196815804 is an abundant number, since it is smaller than the sum of its proper divisors (262421100).

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

196815804 is a wasteful number, since it uses less digits than its factorization.

196815804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401324 (or 16401322 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 196815804 is about 14029.1056022827. The cubic root of 196815804 is about 581.6833813565.

The spelling of 196815804 in words is "one hundred ninety-six million, eight hundred fifteen thousand, eight hundred four".