194974938340 has 576 divisors, whose sum is σ = 583673610240. Its totient is φ = 53180375040.

The previous prime is 194974938337. The next prime is 194974938413. The reversal of 194974938340 is 43839479491.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 236907169 + ... + 236907991.

It is an arithmetic number, because the mean of its divisors is an integer number (1013322240).

Almost surely, 2^194974938340 is an apocalyptic number.

194974938340 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 194974938340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291836805120).

194974938340 is an abundant number, since it is smaller than the sum of its proper divisors (388698671900).

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

194974938340 is a wasteful number, since it uses less digits than its factorization.

194974938340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 194974938340 in words is "one hundred ninety-four billion, nine hundred seventy-four million, nine hundred thirty-eight thousand, three hundred forty".