193195220 has 12 divisors (see below), whose sum is σ = 405710004. Its totient is φ = 77278080.

The previous prime is 193195213. The next prime is 193195231. The reversal of 193195220 is 22591391.

It can be written as a sum of positive squares in 2 ways, for example, as 33779344 + 159415876 = 5812^2 + 12626^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4829861 + ... + 4829900.

It is an arithmetic number, because the mean of its divisors is an integer number (33809167).

Almost surely, 2^193195220 is an apocalyptic number.

193195220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193195220 is an abundant number, since it is smaller than the sum of its proper divisors (212514784).

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

193195220 is a wasteful number, since it uses less digits than its factorization.

193195220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659770 (or 9659768 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 193195220 is about 13899.4683351558. The cubic root of 193195220 is about 578.0944398553.

The spelling of 193195220 in words is "one hundred ninety-three million, one hundred ninety-five thousand, two hundred twenty".