194905236 has 12 divisors (see below), whose sum is σ = 454778912. Its totient is φ = 64968408.

The previous prime is 194905229. The next prime is 194905237. The reversal of 194905236 is 632509491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 194905194 and 194905203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194905237) 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, 8121040 + ... + 8121063.

Almost surely, 2^194905236 is an apocalyptic number.

It is an amenable number.

194905236 is an abundant number, since it is smaller than the sum of its proper divisors (259873676).

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

194905236 is a wasteful number, since it uses less digits than its factorization.

194905236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242110 (or 16242108 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 194905236 is about 13960.8465359376. The cubic root of 194905236 is about 579.7950484737.

The spelling of 194905236 in words is "one hundred ninety-four million, nine hundred five thousand, two hundred thirty-six".