196628240 has 40 divisors (see below), whose sum is σ = 458910360. Its totient is φ = 78350336.

The previous prime is 196628231. The next prime is 196628279. The reversal of 196628240 is 42826691.

It can be written as a sum of positive squares in 4 ways, for example, as 15241216 + 181387024 = 3904^2 + 13468^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 196628194 and 196628203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16952 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (11472759).

Almost surely, 2^196628240 is an apocalyptic number.

196628240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196628240 is an abundant number, since it is smaller than the sum of its proper divisors (262282120).

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

196628240 is a wasteful number, since it uses less digits than its factorization.

196628240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419 (or 9413 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 196628240 is about 14022.4191921366. The cubic root of 196628240 is about 581.4985426462.

The spelling of 196628240 in words is "one hundred ninety-six million, six hundred twenty-eight thousand, two hundred forty".