33240045 has 16 divisors (see below), whose sum is σ = 54316800. Its totient is φ = 17350464.

The previous prime is 33240041. The next prime is 33240079. The reversal of 33240045 is 54004233.

It is a happy number.

It is not a de Polignac number, because 33240045 - 2² = 33240041 is a prime.

It is a super-2 number, since 2×33240045² = 2209801183204050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22870 + ... + 24279.

It is an arithmetic number, because the mean of its divisors is an integer number (3394800).

Almost surely, 2^33240045 is an apocalyptic number.

It is an amenable number.

33240045 is a deficient number, since it is larger than the sum of its proper divisors (21076755).

33240045 is a wasteful number, since it uses less digits than its factorization.

33240045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47204.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 33240045 is about 5765.4180247403. The cubic root of 33240045 is about 321.5292847012.

Adding to 33240045 its reverse (54004233), we get a palindrome (87244278).

The spelling of 33240045 in words is "thirty-three million, two hundred forty thousand, forty-five".