196538320 has 40 divisors (see below), whose sum is σ = 498494880. Its totient is φ = 71468160.

The previous prime is 196538291. The next prime is 196538323. The reversal of 196538320 is 23835691.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×196538320² = 77254622456844800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 196538320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196538323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110790 + ... + 112549.

It is an arithmetic number, because the mean of its divisors is an integer number (12462372).

Almost surely, 2^196538320 is an apocalyptic number.

196538320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196538320 is an abundant number, since it is smaller than the sum of its proper divisors (301956560).

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

196538320 is a wasteful number, since it uses less digits than its factorization.

196538320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223363 (or 223357 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 196538320 is about 14019.2125313799. The cubic root of 196538320 is about 581.4098874906.

The spelling of 196538320 in words is "one hundred ninety-six million, five hundred thirty-eight thousand, three hundred twenty".