133004440 has 32 divisors (see below), whose sum is σ = 309582000. Its totient is φ = 51366784.

The previous prime is 133004419. The next prime is 133004453. The reversal of 133004440 is 44400331.

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 7 ways as a sum of consecutive naturals, for example, 56170 + ... + 58489.

Almost surely, 2^133004440 is an apocalyptic number.

133004440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133004440 is an abundant number, since it is smaller than the sum of its proper divisors (176577560).

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

133004440 is a wasteful number, since it uses less digits than its factorization.

133004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114699 (or 114695 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 133004440 is about 11532.7550914775. The cubic root of 133004440 is about 510.4525522976.

Adding to 133004440 its reverse (44400331), we get a palindrome (177404771).

The spelling of 133004440 in words is "one hundred thirty-three million, four thousand, four hundred forty".