194442404 has 24 divisors (see below), whose sum is σ = 367068408. Its totient is φ = 89591040.

The previous prime is 194442401. The next prime is 194442427. The reversal of 194442404 is 404244491.

It can be written as a sum of positive squares in 4 ways, for example, as 2896804 + 191545600 = 1702^2 + 13840^2 .

It is not an unprimeable number, because it can be changed into a prime (194442401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31544 + ... + 37200.

It is an arithmetic number, because the mean of its divisors is an integer number (15294517).

Almost surely, 2^194442404 is an apocalyptic number.

It is an amenable number.

194442404 is a deficient number, since it is larger than the sum of its proper divisors (172626004).

194442404 is a wasteful number, since it uses less digits than its factorization.

194442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 194442404 is about 13944.2606114487. The cubic root of 194442404 is about 579.3357476723.

Adding to 194442404 its reverse (404244491), we get a palindrome (598686895).

The spelling of 194442404 in words is "one hundred ninety-four million, four hundred forty-two thousand, four hundred four".