196491456 has 84 divisors (see below), whose sum is σ = 643678672. Its totient is φ = 56139264.

The previous prime is 196491439. The next prime is 196491509. The reversal of 196491456 is 654194691.

It is a happy number.

196491456 is a `hidden beast` number, since 196 + 4 + 9 + 1 + 456 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

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 11 ways as a sum of consecutive naturals, for example, 20335 + ... + 28398.

Almost surely, 2^196491456 is an apocalyptic number.

196491456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

196491456 is an abundant number, since it is smaller than the sum of its proper divisors (447187216).

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

196491456 is a wasteful number, since it uses less digits than its factorization.

196491456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758 (or 48745 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 196491456 is about 14017.5410111760. The cubic root of 196491456 is about 581.3636719757.

The spelling of 196491456 in words is "one hundred ninety-six million, four hundred ninety-one thousand, four hundred fifty-six".