194801872 has 10 divisors (see below), whose sum is σ = 377428658. Its totient is φ = 97400928.

The previous prime is 194801837. The next prime is 194801879. The reversal of 194801872 is 278108491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 161900176 + 32901696 = 12724^2 + 5736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194801879) 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 as a sum of consecutive naturals, namely, 6087543 + ... + 6087574.

Almost surely, 2^194801872 is an apocalyptic number.

It is an amenable number.

194801872 is a deficient number, since it is larger than the sum of its proper divisors (182626786).

194801872 is a wasteful number, since it uses less digits than its factorization.

194801872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12175125 (or 12175119 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 194801872 is about 13957.1441204854. The cubic root of 194801872 is about 579.6925362068.

The spelling of 194801872 in words is "one hundred ninety-four million, eight hundred one thousand, eight hundred seventy-two".