196408656 has 30 divisors (see below), whose sum is σ = 549671850. Its totient is φ = 65469504.

The previous prime is 196408637. The next prime is 196408657. The reversal of 196408656 is 656804691.

196408656 is a `hidden beast` number, since 196 + 408 + 6 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 195440400 + 968256 = 13980^2 + 984^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196408657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 681831 + ... + 682118.

It is an arithmetic number, because the mean of its divisors is an integer number (18322395).

Almost surely, 2^196408656 is an apocalyptic number.

196408656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

196408656 is an abundant number, since it is smaller than the sum of its proper divisors (353263194).

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

196408656 is a wasteful number, since it uses less digits than its factorization.

196408656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363963 (or 1363954 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 196408656 is about 14014.5872575685. The cubic root of 196408656 is about 581.2819997645.

The spelling of 196408656 in words is "one hundred ninety-six million, four hundred eight thousand, six hundred fifty-six".