133826438 has 8 divisors (see below), whose sum is σ = 202809432. Its totient is φ = 66223296.

The previous prime is 133826389. The next prime is 133826453. The reversal of 133826438 is 834628331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344720 + ... + 345107.

It is an arithmetic number, because the mean of its divisors is an integer number (25351179).

Almost surely, 2^133826438 is an apocalyptic number.

133826438 is a deficient number, since it is larger than the sum of its proper divisors (68982994).

133826438 is an equidigital number, since it uses as much as digits as its factorization.

133826438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689926.

The product of its digits is 82944, while the sum is 38.

The square root of 133826438 is about 11568.3377371168. The cubic root of 133826438 is about 511.5019647413.

The spelling of 133826438 in words is "one hundred thirty-three million, eight hundred twenty-six thousand, four hundred thirty-eight".