33639045 has 16 divisors (see below), whose sum is σ = 58715712. Its totient is φ = 16309760.

The previous prime is 33639013. The next prime is 33639071. The reversal of 33639045 is 54093633.

It is not a de Polignac number, because 33639045 - 2⁵ = 33639013 is a prime.

It is a super-2 number, since 2×33639045² = 2263170697024050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 33638997 and 33639015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101772 + ... + 102101.

It is an arithmetic number, because the mean of its divisors is an integer number (3669732).

Almost surely, 2^33639045 is an apocalyptic number.

It is an amenable number.

33639045 is a deficient number, since it is larger than the sum of its proper divisors (25076667).

33639045 is a wasteful number, since it uses less digits than its factorization.

33639045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203892.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 33639045 is about 5799.9176718295. The cubic root of 33639045 is about 322.8106735214.

The spelling of 33639045 in words is "thirty-three million, six hundred thirty-nine thousand, forty-five".