194655072 has 72 divisors (see below), whose sum is σ = 534290904. Its totient is φ = 62047744.

The previous prime is 194655053. The next prime is 194655079. The reversal of 194655072 is 270556491.

It is a self number, because there is not a number n which added to its sum of digits gives 194655072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194655079) 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 11 ways as a sum of consecutive naturals, for example, 48868 + ... + 52700.

It is an arithmetic number, because the mean of its divisors is an integer number (7420707).

Almost surely, 2^194655072 is an apocalyptic number.

194655072 is a gapful number since it is divisible by the number (12) 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 194655072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267145452).

194655072 is an abundant number, since it is smaller than the sum of its proper divisors (339635832).

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

194655072 is a wasteful number, since it uses less digits than its factorization.

194655072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 194655072 is about 13951.8841738311. The cubic root of 194655072 is about 579.5468835174.

The spelling of 194655072 in words is "one hundred ninety-four million, six hundred fifty-five thousand, seventy-two".