33438245 has 8 divisors (see below), whose sum is σ = 40164984. Its totient is φ = 26724544.

The previous prime is 33438241. The next prime is 33438277. The reversal of 33438245 is 54283433.

It can be written as a sum of positive squares in 4 ways, for example, as 10647169 + 22791076 = 3263^2 + 4774^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33438245 - 2² = 33438241 is a prime.

It is a super-2 number, since 2×33438245² = 2236232457360050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33438241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3767 + ... + 9003.

It is an arithmetic number, because the mean of its divisors is an integer number (5020623).

Almost surely, 2^33438245 is an apocalyptic number.

It is an amenable number.

33438245 is a deficient number, since it is larger than the sum of its proper divisors (6726739).

33438245 is a wasteful number, since it uses less digits than its factorization.

33438245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519.

The product of its digits is 34560, while the sum is 32.

The square root of 33438245 is about 5782.5811710689. The cubic root of 33438245 is about 322.1670782676.

The spelling of 33438245 in words is "thirty-three million, four hundred thirty-eight thousand, two hundred forty-five".