133340446 has 16 divisors (see below), whose sum is σ = 206469648. Its totient is φ = 64542400.

The previous prime is 133340443. The next prime is 133340477. The reversal of 133340446 is 644043331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133340443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4536 + ... + 16948.

It is an arithmetic number, because the mean of its divisors is an integer number (12904353).

Almost surely, 2^133340446 is an apocalyptic number.

133340446 is a deficient number, since it is larger than the sum of its proper divisors (73129202).

133340446 is a wasteful number, since it uses less digits than its factorization.

133340446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 133340446 is about 11547.3133671863. The cubic root of 133340446 is about 510.8820389401.

Adding to 133340446 its reverse (644043331), we get a palindrome (777383777).

The spelling of 133340446 in words is "one hundred thirty-three million, three hundred forty thousand, four hundred forty-six".