194436404 has 12 divisors (see below), whose sum is σ = 340865700. Its totient is φ = 97046208.

The previous prime is 194436401. The next prime is 194436427. The reversal of 194436404 is 404634491.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 182520100 = 3452^2 + 13510^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194436401) 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, 40439 + ... + 44990.

It is an arithmetic number, because the mean of its divisors is an integer number (28405475).

Almost surely, 2^194436404 is an apocalyptic number.

It is an amenable number.

194436404 is a deficient number, since it is larger than the sum of its proper divisors (146429296).

194436404 is a wasteful number, since it uses less digits than its factorization.

194436404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86002 (or 86000 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 194436404 is about 13944.0454675105. The cubic root of 194436404 is about 579.3297886665.

The spelling of 194436404 in words is "one hundred ninety-four million, four hundred thirty-six thousand, four hundred four".