193209340 has 12 divisors (see below), whose sum is σ = 405739656. Its totient is φ = 77283728.

The previous prime is 193209337. The next prime is 193209349. The reversal of 193209340 is 43902391.

193209340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193209349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830214 + ... + 4830253.

It is an arithmetic number, because the mean of its divisors is an integer number (33811638).

Almost surely, 2^193209340 is an apocalyptic number.

193209340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193209340 is an abundant number, since it is smaller than the sum of its proper divisors (212530316).

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

193209340 is a wasteful number, since it uses less digits than its factorization.

193209340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660476 (or 9660474 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 193209340 is about 13899.9762589725. The cubic root of 193209340 is about 578.1085231827.

The spelling of 193209340 in words is "one hundred ninety-three million, two hundred nine thousand, three hundred forty".