194741640 has 192 divisors, whose sum is σ = 677289600. Its totient is φ = 48384000.

The previous prime is 194741629. The next prime is 194741653. The reversal of 194741640 is 46147491.

194741640 is a `hidden beast` number, since 1 + 9 + 4 + 7 + 4 + 1 + 640 = 666.

194741640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 194741595 and 194741604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485440 + ... + 485840.

It is an arithmetic number, because the mean of its divisors is an integer number (3527550).

Almost surely, 2^194741640 is an apocalyptic number.

194741640 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 194741640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338644800).

194741640 is an abundant number, since it is smaller than the sum of its proper divisors (482547960).

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

194741640 is a wasteful number, since it uses less digits than its factorization.

194741640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 194741640 is about 13954.9862056542. The cubic root of 194741640 is about 579.6327838035.

The spelling of 194741640 in words is "one hundred ninety-four million, seven hundred forty-one thousand, six hundred forty".