196621320 has 256 divisors, whose sum is σ = 730944000. Its totient is φ = 42147840.

The previous prime is 196621307. The next prime is 196621333. The reversal of 196621320 is 23126691.

196621320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (196621307) and next prime (196621333).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 699580 + ... + 699860.

It is an arithmetic number, because the mean of its divisors is an integer number (2855250).

Almost surely, 2^196621320 is an apocalyptic number.

196621320 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 196621320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365472000).

196621320 is an abundant number, since it is smaller than the sum of its proper divisors (534322680).

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

196621320 is a wasteful number, since it uses less digits than its factorization.

196621320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 196621320 is about 14022.1724422430. The cubic root of 196621320 is about 581.4917209453.

The spelling of 196621320 in words is "one hundred ninety-six million, six hundred twenty-one thousand, three hundred twenty".