196396520 has 64 divisors (see below), whose sum is σ = 450444240. Its totient is φ = 77056000.

The previous prime is 196396513. The next prime is 196396537. The reversal of 196396520 is 25693691.

It can be written as a sum of positive squares in 8 ways, for example, as 185885956 + 10510564 = 13634^2 + 3242^2 .

It is a super-2 number, since 2×196396520² = 77143186136220800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698780 + ... + 699060.

Almost surely, 2^196396520 is an apocalyptic number.

196396520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196396520 is an abundant number, since it is smaller than the sum of its proper divisors (254047720).

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

196396520 is a wasteful number, since it uses less digits than its factorization.

196396520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 196396520 is about 14014.1542734480. The cubic root of 196396520 is about 581.2700271359.

The spelling of 196396520 in words is "one hundred ninety-six million, three hundred ninety-six thousand, five hundred twenty".