196388900 has 18 divisors (see below), whose sum is σ = 426164130. Its totient is φ = 78555520.

The previous prime is 196388867. The next prime is 196388953. The reversal of 196388900 is 9883691.

It can be written as a sum of positive squares in 3 ways, for example, as 164836 + 196224064 = 406^2 + 14008^2 .

It is a super-3 number, since 3×196388900³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 981845 + ... + 982044.

It is an arithmetic number, because the mean of its divisors is an integer number (23675785).

Almost surely, 2^196388900 is an apocalyptic number.

196388900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196388900 is an abundant number, since it is smaller than the sum of its proper divisors (229775230).

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

196388900 is a wasteful number, since it uses less digits than its factorization.

196388900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963903 (or 1963896 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 196388900 is about 14013.8824028176. The cubic root of 196388900 is about 581.2625094621.

The spelling of 196388900 in words is "one hundred ninety-six million, three hundred eighty-eight thousand, nine hundred".