133728344 has 8 divisors (see below), whose sum is σ = 250740660. Its totient is φ = 66864168.

The previous prime is 133728313. The next prime is 133728379. The reversal of 133728344 is 443827331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358014 + ... + 8358029.

Almost surely, 2^133728344 is an apocalyptic number.

It is an amenable number.

133728344 is a deficient number, since it is larger than the sum of its proper divisors (117012316).

133728344 is a wasteful number, since it uses less digits than its factorization.

133728344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16716049 (or 16716045 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 133728344 is about 11564.0971977928. The cubic root of 133728344 is about 511.3769582058.

The spelling of 133728344 in words is "one hundred thirty-three million, seven hundred twenty-eight thousand, three hundred forty-four".