133220384 has 24 divisors (see below), whose sum is σ = 286121808. Its totient is φ = 60554560.

The previous prime is 133220383. The next prime is 133220413. The reversal of 133220384 is 483022331.

It is not an unprimeable number, because it can be changed into a prime (133220383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188882 + ... + 189585.

It is an arithmetic number, because the mean of its divisors is an integer number (11921742).

Almost surely, 2^133220384 is an apocalyptic number.

It is an amenable number.

133220384 is an abundant number, since it is smaller than the sum of its proper divisors (152901424).

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

133220384 is a wasteful number, since it uses less digits than its factorization.

133220384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378488 (or 378480 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 133220384 is about 11542.1134979691. The cubic root of 133220384 is about 510.7286572764.

The spelling of 133220384 in words is "one hundred thirty-three million, two hundred twenty thousand, three hundred eighty-four".