196388902 has 8 divisors (see below), whose sum is σ = 310087800. Its totient is φ = 93026304.

The previous prime is 196388867. The next prime is 196388953. The reversal of 196388902 is 209883691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×196388902³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2584027 + ... + 2584102.

It is an arithmetic number, because the mean of its divisors is an integer number (38760975).

Almost surely, 2^196388902 is an apocalyptic number.

196388902 is a deficient number, since it is larger than the sum of its proper divisors (113698898).

196388902 is a wasteful number, since it uses less digits than its factorization.

196388902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168150.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 196388902 is about 14013.8824741754. The cubic root of 196388902 is about 581.2625114353.

The spelling of 196388902 in words is "one hundred ninety-six million, three hundred eighty-eight thousand, nine hundred two".