194259072 has 64 divisors (see below), whose sum is σ = 589723200. Its totient is φ = 55501824.

The previous prime is 194259067. The next prime is 194259089. The reversal of 194259072 is 270952491.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 194259072.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33447 + ... + 38822.

It is an arithmetic number, because the mean of its divisors is an integer number (9214425).

Almost surely, 2^194259072 is an apocalyptic number.

194259072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194259072 is an abundant number, since it is smaller than the sum of its proper divisors (395464128).

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

194259072 is an equidigital number, since it uses as much as digits as its factorization.

194259072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72293 (or 72281 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 194259072 is about 13937.6853171536. The cubic root of 194259072 is about 579.1536128820.

The spelling of 194259072 in words is "one hundred ninety-four million, two hundred fifty-nine thousand, seventy-two".