196806520 has 16 divisors (see below), whose sum is σ = 442814760. Its totient is φ = 78722592.

The previous prime is 196806497. The next prime is 196806521. The reversal of 196806520 is 25608691.

It is a self number, because there is not a number n which added to its sum of digits gives 196806520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196806521) 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, 2460042 + ... + 2460121.

Almost surely, 2^196806520 is an apocalyptic number.

196806520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196806520 is an abundant number, since it is smaller than the sum of its proper divisors (246008240).

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

196806520 is a wasteful number, since it uses less digits than its factorization.

196806520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920174 (or 4920170 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 196806520 is about 14028.7747148495. The cubic root of 196806520 is about 581.6742350154.

The spelling of 196806520 in words is "one hundred ninety-six million, eight hundred six thousand, five hundred twenty".