196559440 has 160 divisors (see below), whose sum is σ = 603604224. Its totient is φ = 57630720.

The previous prime is 196559417. The next prime is 196559443. The reversal of 196559440 is 44955691.

It is a super-2 number, since 2×196559440² = 77271226906227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196559443) by changing a digit.

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, 103782 + ... + 105658.

Almost surely, 2^196559440 is an apocalyptic number.

196559440 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 196559440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301802112).

196559440 is an abundant number, since it is smaller than the sum of its proper divisors (407044784).

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

196559440 is a wasteful number, since it uses less digits than its factorization.

196559440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 196559440 is about 14019.9657631536. The cubic root of 196559440 is about 581.4307128390.

The spelling of 196559440 in words is "one hundred ninety-six million, five hundred fifty-nine thousand, four hundred forty".