196213690 has 16 divisors (see below), whose sum is σ = 368540928. Its totient is φ = 75072976.

The previous prime is 196213679. The next prime is 196213691. The reversal of 196213690 is 96312691.

It is a super-2 number, since 2×196213690² = 76999624286832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196213691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426322 + ... + 426781.

It is an arithmetic number, because the mean of its divisors is an integer number (23033808).

Almost surely, 2^196213690 is an apocalyptic number.

196213690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196213690 is a deficient number, since it is larger than the sum of its proper divisors (172327238).

196213690 is a wasteful number, since it uses less digits than its factorization.

196213690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853133.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 196213690 is about 14007.6297066991. The cubic root of 196213690 is about 581.0895986272.

Subtracting from 196213690 its reverse (96312691), we obtain a palindrome (99900999).

The spelling of 196213690 in words is "one hundred ninety-six million, two hundred thirteen thousand, six hundred ninety".