33291045 has 24 divisors (see below), whose sum is σ = 58687200. Its totient is φ = 17452896.

The previous prime is 33291031. The next prime is 33291047. The reversal of 33291045 is 54019233.

It is not a de Polignac number, because 33291045 - 2⁹ = 33290533 is a prime.

It is a super-2 number, since 2×33291045² = 2216587354384050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33291047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3615 + ... + 8924.

It is an arithmetic number, because the mean of its divisors is an integer number (2445300).

Almost surely, 2^33291045 is an apocalyptic number.

It is an amenable number.

33291045 is a deficient number, since it is larger than the sum of its proper divisors (25396155).

33291045 is a wasteful number, since it uses less digits than its factorization.

33291045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609 (or 12606 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 33291045 is about 5769.8392525269. The cubic root of 33291045 is about 321.6936408186.

The spelling of 33291045 in words is "thirty-three million, two hundred ninety-one thousand, forty-five".