196528644 has 36 divisors (see below), whose sum is σ = 534995916. Its totient is φ = 60470208.

The previous prime is 196528637. The next prime is 196528663. The reversal of 196528644 is 446825691.

It can be written as a sum of positive squares in 2 ways, for example, as 47444544 + 149084100 = 6888^2 + 12210^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 196528644.

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, 209499 + ... + 210434.

Almost surely, 2^196528644 is an apocalyptic number.

It is an amenable number.

196528644 is an abundant number, since it is smaller than the sum of its proper divisors (338467272).

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

196528644 is a wasteful number, since it uses less digits than its factorization.

196528644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419956 (or 419951 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 196528644 is about 14018.8674292897. The cubic root of 196528644 is about 581.4003459851.

The spelling of 196528644 in words is "one hundred ninety-six million, five hundred twenty-eight thousand, six hundred forty-four".