196398240 has 48 divisors (see below), whose sum is σ = 618655968. Its totient is φ = 52372736.

The previous prime is 196398227. The next prime is 196398253. The reversal of 196398240 is 42893691.

It is an interprime number because it is at equal distance from previous prime (196398227) and next prime (196398253).

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 196398192 and 196398201.

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, 204102 + ... + 205061.

It is an arithmetic number, because the mean of its divisors is an integer number (12888666).

Almost surely, 2^196398240 is an apocalyptic number.

196398240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196398240 is an abundant number, since it is smaller than the sum of its proper divisors (422257728).

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

196398240 is a wasteful number, since it uses less digits than its factorization.

196398240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409181 (or 409173 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 196398240 is about 14014.2156398423. The cubic root of 196398240 is about 581.2717240117.

The spelling of 196398240 in words is "one hundred ninety-six million, three hundred ninety-eight thousand, two hundred forty".