194403427 has 4 divisors (see below), whose sum is σ = 199145016. Its totient is φ = 189661840.

The previous prime is 194403409. The next prime is 194403431. The reversal of 194403427 is 724304491.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194403427 - 2¹¹ = 194401379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194403392 and 194403401.

It is not an unprimeable number, because it can be changed into a prime (194403457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370733 + ... + 2370814.

It is an arithmetic number, because the mean of its divisors is an integer number (49786254).

Almost surely, 2^194403427 is an apocalyptic number.

194403427 is a deficient number, since it is larger than the sum of its proper divisors (4741589).

194403427 is an equidigital number, since it uses as much as digits as its factorization.

194403427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741588.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 194403427 is about 13942.8629413044. The cubic root of 194403427 is about 579.2970347888.

The spelling of 194403427 in words is "one hundred ninety-four million, four hundred three thousand, four hundred twenty-seven".