196709520 has 240 divisors, whose sum is σ = 727721280. Its totient is φ = 43803648.

The previous prime is 196709507. The next prime is 196709531. The reversal of 196709520 is 25907691.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 505486 + ... + 505874.

It is an arithmetic number, because the mean of its divisors is an integer number (3032172).

Almost surely, 2^196709520 is an apocalyptic number.

196709520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196709520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363860640).

196709520 is an abundant number, since it is smaller than the sum of its proper divisors (531011760).

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

196709520 is a wasteful number, since it uses less digits than its factorization.

196709520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 196709520 is about 14025.3171087145. The cubic root of 196709520 is about 581.5786560801.

The spelling of 196709520 in words is "one hundred ninety-six million, seven hundred nine thousand, five hundred twenty".