196390386 has 32 divisors (see below), whose sum is σ = 436897920. Its totient is φ = 65392272.

The previous prime is 196390373. The next prime is 196390421. The reversal of 196390386 is 683093691.

196390386 is a `hidden beast` number, since 1 + 9 + 639 + 0 + 3 + 8 + 6 = 666.

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 15 ways as a sum of consecutive naturals, for example, 77211 + ... + 79713.

It is an arithmetic number, because the mean of its divisors is an integer number (13653060).

Almost surely, 2^196390386 is an apocalyptic number.

196390386 is an abundant number, since it is smaller than the sum of its proper divisors (240507534).

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

196390386 is a wasteful number, since it uses less digits than its factorization.

196390386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3961 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 196390386 is about 14013.9354215723. The cubic root of 196390386 is about 581.2639755225.

The spelling of 196390386 in words is "one hundred ninety-six million, three hundred ninety thousand, three hundred eighty-six".