196213680 has 120 divisors (see below), whose sum is σ = 709673328. Its totient is φ = 48296448.

The previous prime is 196213679. The next prime is 196213691. The reversal of 196213680 is 86312691.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 1122 + ... + 19841.

Almost surely, 2^196213680 is an apocalyptic number.

196213680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196213680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354836664).

196213680 is an abundant number, since it is smaller than the sum of its proper divisors (513459648).

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

196213680 is a wasteful number, since it uses less digits than its factorization.

196213680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20995 (or 20986 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 196213680 is about 14007.6293497508. The cubic root of 196213680 is about 581.0895887555.

The spelling of 196213680 in words is "one hundred ninety-six million, two hundred thirteen thousand, six hundred eighty".