194316440 has 32 divisors (see below), whose sum is σ = 440370000. Its totient is φ = 77165184.

The previous prime is 194316431. The next prime is 194316449. The reversal of 194316440 is 44613491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194316431) and next prime (194316449).

It is a junction number, because it is equal to n+sod(n) for n = 194316397 and 194316406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194316449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11915 + ... + 23034.

Almost surely, 2^194316440 is an apocalyptic number.

194316440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194316440 is an abundant number, since it is smaller than the sum of its proper divisors (246053560).

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

194316440 is a wasteful number, since it uses less digits than its factorization.

194316440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35099 (or 35095 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 194316440 is about 13939.7431827132. The cubic root of 194316440 is about 579.2106185670.

The spelling of 194316440 in words is "one hundred ninety-four million, three hundred sixteen thousand, four hundred forty".