133678448 has 20 divisors (see below), whose sum is σ = 267357888. Its totient is φ = 64682880.

The previous prime is 133678427. The next prime is 133678451. The reversal of 133678448 is 844876331.

133678448 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

133678448 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 133678399 and 133678408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134261 + ... + 135252.

Almost surely, 2^133678448 is an apocalyptic number.

It is an amenable number.

133678448 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133678448 is a wasteful number, since it uses less digits than its factorization.

133678448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269552 (or 269546 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 133678448 is about 11561.9396296642. The cubic root of 133678448 is about 511.3133495546.

The spelling of 133678448 in words is "one hundred thirty-three million, six hundred seventy-eight thousand, four hundred forty-eight".