196990880 has 24 divisors (see below), whose sum is σ = 465391332. Its totient is φ = 78796288.

The previous prime is 196990867. The next prime is 196990903. The reversal of 196990880 is 88099691.

It can be written as a sum of positive squares in 2 ways, for example, as 160073104 + 36917776 = 12652^2 + 6076^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615437 + ... + 615756.

Almost surely, 2^196990880 is an apocalyptic number.

196990880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196990880 is an abundant number, since it is smaller than the sum of its proper divisors (268400452).

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

196990880 is a wasteful number, since it uses less digits than its factorization.

196990880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231208 (or 1231200 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 196990880 is about 14035.3439573101. The cubic root of 196990880 is about 581.8558075809.

The spelling of 196990880 in words is "one hundred ninety-six million, nine hundred ninety thousand, eight hundred eighty".