33778045 has 8 divisors (see below), whose sum is σ = 46324224. Its totient is φ = 23162064.

The previous prime is 33778027. The next prime is 33778051. The reversal of 33778045 is 54087733.

33778045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33778045 - 2⁷ = 33777917 is a prime.

It is a super-2 number, since 2×33778045² = 2281912648044050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33777995 and 33778013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482509 + ... + 482578.

It is an arithmetic number, because the mean of its divisors is an integer number (5790528).

Almost surely, 2^33778045 is an apocalyptic number.

33778045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33778045 is a deficient number, since it is larger than the sum of its proper divisors (12546179).

33778045 is an equidigital number, since it uses as much as digits as its factorization.

33778045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965099.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 33778045 is about 5811.8882473771. Note that the first 3 decimals coincide. The cubic root of 33778045 is about 323.2546914940.

The spelling of 33778045 in words is "thirty-three million, seven hundred seventy-eight thousand, forty-five".