194730240 has 288 divisors, whose sum is σ = 697576320. Its totient is φ = 46006272.

The previous prime is 194730233. The next prime is 194730241. The reversal of 194730240 is 42037491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 194730198 and 194730207.

It is not an unprimeable number, because it can be changed into a prime (194730241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1240242 + ... + 1240398.

It is an arithmetic number, because the mean of its divisors is an integer number (2422140).

Almost surely, 2^194730240 is an apocalyptic number.

194730240 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 194730240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348788160).

194730240 is an abundant number, since it is smaller than the sum of its proper divisors (502846080).

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

194730240 is a wasteful number, since it uses less digits than its factorization.

194730240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 194730240 is about 13954.5777435220. The cubic root of 194730240 is about 579.6214731893.

The spelling of 194730240 in words is "one hundred ninety-four million, seven hundred thirty thousand, two hundred forty".