196978560 has 64 divisors (see below), whose sum is σ = 627875280. Its totient is φ = 52527104.

The previous prime is 196978559. The next prime is 196978597. The reversal of 196978560 is 65879691.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49377 + ... + 53216.

Almost surely, 2^196978560 is an apocalyptic number.

196978560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196978560 is an abundant number, since it is smaller than the sum of its proper divisors (430896720).

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

196978560 is a wasteful number, since it uses less digits than its factorization.

196978560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102615 (or 102603 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 196978560 is about 14034.9050584605. The cubic root of 196978560 is about 581.8436773865.

The spelling of 196978560 in words is "one hundred ninety-six million, nine hundred seventy-eight thousand, five hundred sixty".