133416438 has 8 divisors (see below), whose sum is σ = 266832888. Its totient is φ = 44472144.

The previous prime is 133416407. The next prime is 133416457. The reversal of 133416438 is 834614331.

It is a sphenic number, since it is the product of 3 distinct primes.

133416438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 133416399 and 133416408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11118031 + ... + 11118042.

It is an arithmetic number, because the mean of its divisors is an integer number (33354111).

Almost surely, 2^133416438 is an apocalyptic number.

133416438 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.

133416438 is a wasteful number, since it uses less digits than its factorization.

133416438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236078.

The product of its digits is 20736, while the sum is 33.

The square root of 133416438 is about 11550.6033608639. The cubic root of 133416438 is about 510.9790727015.

The spelling of 133416438 in words is "one hundred thirty-three million, four hundred sixteen thousand, four hundred thirty-eight".