193198340 has 24 divisors (see below), whose sum is σ = 407113560. Its totient is φ = 77013248.

The previous prime is 193198337. The next prime is 193198381. The reversal of 193198340 is 43891391.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50013184 + 143185156 = 7072^2 + 11966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 193198294 and 193198303.

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 7 ways as a sum of consecutive naturals, for example, 10625 + ... + 22344.

It is an arithmetic number, because the mean of its divisors is an integer number (16963065).

Almost surely, 2^193198340 is an apocalyptic number.

193198340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193198340 is an abundant number, since it is smaller than the sum of its proper divisors (213915220).

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

193198340 is a wasteful number, since it uses less digits than its factorization.

193198340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33271 (or 33269 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 193198340 is about 13899.5805692114. The cubic root of 193198340 is about 578.0975518110.

The spelling of 193198340 in words is "one hundred ninety-three million, one hundred ninety-eight thousand, three hundred forty".