194660742 has 32 divisors (see below), whose sum is σ = 399294720. Its totient is φ = 63231840.

The previous prime is 194660671. The next prime is 194660747. The reversal of 194660742 is 247066491.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 194660742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194660747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 211359 + ... + 212277.

It is an arithmetic number, because the mean of its divisors is an integer number (12477960).

Almost surely, 2^194660742 is an apocalyptic number.

194660742 is an abundant number, since it is smaller than the sum of its proper divisors (204633978).

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

194660742 is a wasteful number, since it uses less digits than its factorization.

194660742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 194660742 is about 13952.0873707127. The cubic root of 194660742 is about 579.5525105630.

The spelling of 194660742 in words is "one hundred ninety-four million, six hundred sixty thousand, seven hundred forty-two".