133330338 has 12 divisors (see below), whose sum is σ = 288882438. Its totient is φ = 44443440.

The previous prime is 133330331. The next prime is 133330363. The reversal of 133330338 is 833033331.

It can be written as a sum of positive squares in only one way, i.e., 115412049 + 17918289 = 10743^2 + 4233^2 .

It is not an unprimeable number, because it can be changed into a prime (133330331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3703603 + ... + 3703638.

Almost surely, 2^133330338 is an apocalyptic number.

133330338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

133330338 is an abundant number, since it is smaller than the sum of its proper divisors (155552100).

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

133330338 is a wasteful number, since it uses less digits than its factorization.

133330338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407249 (or 7407246 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 133330338 is about 11546.8756813261. The cubic root of 133330338 is about 510.8691293134.

Adding to 133330338 its reverse (833033331), we get a palindrome (966363669).

The spelling of 133330338 in words is "one hundred thirty-three million, three hundred thirty thousand, three hundred thirty-eight".