194890404 has 48 divisors (see below), whose sum is σ = 464027648. Its totient is φ = 63648288.

The previous prime is 194890387. The next prime is 194890417. The reversal of 194890404 is 404098491.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178749 + ... + 179835.

Almost surely, 2^194890404 is an apocalyptic number.

It is an amenable number.

194890404 is an abundant number, since it is smaller than the sum of its proper divisors (269137244).

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

194890404 is a wasteful number, since it uses less digits than its factorization.

194890404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 194890404 is about 13960.3153259516. The cubic root of 194890404 is about 579.7803409189.

The spelling of 194890404 in words is "one hundred ninety-four million, eight hundred ninety thousand, four hundred four".