196868390 has 8 divisors (see below), whose sum is σ = 354363120. Its totient is φ = 78747352.

The previous prime is 196868369. The next prime is 196868393. The reversal of 196868390 is 93868691.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196868393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9843410 + ... + 9843429.

It is an arithmetic number, because the mean of its divisors is an integer number (44295390).

Almost surely, 2^196868390 is an apocalyptic number.

196868390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196868390 is a deficient number, since it is larger than the sum of its proper divisors (157494730).

196868390 is a wasteful number, since it uses less digits than its factorization.

196868390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19686846.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 196868390 is about 14030.9796521839. The cubic root of 196868390 is about 581.7351822076.

The spelling of 196868390 in words is "one hundred ninety-six million, eight hundred sixty-eight thousand, three hundred ninety".