196809580 has 24 divisors (see below), whose sum is σ = 450873360. Its totient is φ = 71567040.

The previous prime is 196809577. The next prime is 196809583. The reversal of 196809580 is 85908691.

It is an interprime number because it is at equal distance from previous prime (196809577) and next prime (196809583).

It is a super-3 number, since 3×196809580³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196809580.

It is not an unprimeable number, because it can be changed into a prime (196809583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447075 + ... + 447514.

It is an arithmetic number, because the mean of its divisors is an integer number (18786390).

Almost surely, 2^196809580 is an apocalyptic number.

196809580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196809580 is an abundant number, since it is smaller than the sum of its proper divisors (254063780).

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

196809580 is a wasteful number, since it uses less digits than its factorization.

196809580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894609 (or 894607 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 196809580 is about 14028.8837759816. The cubic root of 196809580 is about 581.6772496749.

The spelling of 196809580 in words is "one hundred ninety-six million, eight hundred nine thousand, five hundred eighty".