194442402 has 48 divisors (see below), whose sum is σ = 488529216. Its totient is φ = 50503200.

The previous prime is 194442401. The next prime is 194442427. The reversal of 194442402 is 204244491.

It is a self number, because there is not a number n which added to its sum of digits gives 194442402.

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 23 ways as a sum of consecutive naturals, for example, 14049 + ... + 24212.

It is an arithmetic number, because the mean of its divisors is an integer number (10177692).

Almost surely, 2^194442402 is an apocalyptic number.

194442402 is an abundant number, since it is smaller than the sum of its proper divisors (294086814).

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

194442402 is a wasteful number, since it uses less digits than its factorization.

194442402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38295 (or 38284 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 194442402 is about 13944.2605397346. The cubic root of 194442402 is about 579.3357456860.

Adding to 194442402 its reverse (204244491), we get a palindrome (398686893).

Subtracting 194442402 from its reverse (204244491), we obtain a palindrome (9802089).

The spelling of 194442402 in words is "one hundred ninety-four million, four hundred forty-two thousand, four hundred two".