196123240 has 16 divisors (see below), whose sum is σ = 441277380. Its totient is φ = 78449280.

The previous prime is 196123217. The next prime is 196123247. The reversal of 196123240 is 42321691.

It can be written as a sum of positive squares in 2 ways, for example, as 191379556 + 4743684 = 13834^2 + 2178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 196123199 and 196123208.

It is not an unprimeable number, because it can be changed into a prime (196123247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2451501 + ... + 2451580.

Almost surely, 2^196123240 is an apocalyptic number.

196123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196123240 is an abundant number, since it is smaller than the sum of its proper divisors (245154140).

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

196123240 is a wasteful number, since it uses less digits than its factorization.

196123240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903092 (or 4903088 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 196123240 is about 14004.4007369112. The cubic root of 196123240 is about 581.0002952551. Note that the first 3 decimals are identical.

The spelling of 196123240 in words is "one hundred ninety-six million, one hundred twenty-three thousand, two hundred forty".