133684444 has 12 divisors (see below), whose sum is σ = 238362264. Its totient is φ = 65580944.

The previous prime is 133684433. The next prime is 133684451. The reversal of 133684444 is 444486331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315082 + ... + 315505.

It is an arithmetic number, because the mean of its divisors is an integer number (19863522).

Almost surely, 2^133684444 is an apocalyptic number.

It is an amenable number.

133684444 is a deficient number, since it is larger than the sum of its proper divisors (104677820).

133684444 is a wasteful number, since it uses less digits than its factorization.

133684444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630644 (or 630642 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 133684444 is about 11562.1989258099. The cubic root of 133684444 is about 511.3209942399.

The spelling of 133684444 in words is "one hundred thirty-three million, six hundred eighty-four thousand, four hundred forty-four".