194273872 has 20 divisors (see below), whose sum is σ = 405360340. Its totient is φ = 89664768.

The previous prime is 194273797. The next prime is 194273873. The reversal of 194273872 is 278372491.

It can be written as a sum of positive squares in 2 ways, for example, as 18870336 + 175403536 = 4344^2 + 13244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194273873) 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 3 ways as a sum of consecutive naturals, for example, 466797 + ... + 467212.

It is an arithmetic number, because the mean of its divisors is an integer number (20268017).

Almost surely, 2^194273872 is an apocalyptic number.

It is an amenable number.

194273872 is an abundant number, since it is smaller than the sum of its proper divisors (211086468).

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

194273872 is a wasteful number, since it uses less digits than its factorization.

194273872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934030 (or 934024 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 194273872 is about 13938.2162416860. The cubic root of 194273872 is about 579.1683204848.

The spelling of 194273872 in words is "one hundred ninety-four million, two hundred seventy-three thousand, eight hundred seventy-two".