194197340 has 48 divisors (see below), whose sum is σ = 424327680. Its totient is φ = 74565120.

The previous prime is 194197337. The next prime is 194197391. The reversal of 194197340 is 43791491.

It is a junction number, because it is equal to n+sod(n) for n = 194197294 and 194197303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109904 + ... + 111656.

It is an arithmetic number, because the mean of its divisors is an integer number (8840160).

Almost surely, 2^194197340 is an apocalyptic number.

194197340 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 194197340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212163840).

194197340 is an abundant number, since it is smaller than the sum of its proper divisors (230130340).

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

194197340 is a wasteful number, since it uses less digits than its factorization.

194197340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 194197340 is about 13935.4705697368. The cubic root of 194197340 is about 579.0922582208.

The spelling of 194197340 in words is "one hundred ninety-four million, one hundred ninety-seven thousand, three hundred forty".