196896840 has 128 divisors (see below), whose sum is σ = 679829760. Its totient is φ = 44688384.

The previous prime is 196896809. The next prime is 196896857. The reversal of 196896840 is 48698691.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131134 + ... + 132626.

It is an arithmetic number, because the mean of its divisors is an integer number (5311170).

Almost surely, 2^196896840 is an apocalyptic number.

196896840 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 196896840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339914880).

196896840 is an abundant number, since it is smaller than the sum of its proper divisors (482932920).

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

196896840 is a wasteful number, since it uses less digits than its factorization.

196896840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 196896840 is about 14031.9934435561. The cubic root of 196896840 is about 581.7632035823.

The spelling of 196896840 in words is "one hundred ninety-six million, eight hundred ninety-six thousand, eight hundred forty".