33340545 has 32 divisors (see below), whose sum is σ = 67741440. Its totient is φ = 15240960.

The previous prime is 33340543. The next prime is 33340561. The reversal of 33340545 is 54504333.

It is a happy number.

It is not a de Polignac number, because 33340545 - 2¹ = 33340543 is a prime.

It is a super-2 number, since 2×33340545² = 2223183881794050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33340543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16696 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (2116920).

Almost surely, 2^33340545 is an apocalyptic number.

33340545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33340545 is an abundant number, since it is smaller than the sum of its proper divisors (34400895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33340545 is a wasteful number, since it uses less digits than its factorization.

33340545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35302 (or 35296 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 33340545 is about 5774.1272067733. The cubic root of 33340545 is about 321.8530024870.

Adding to 33340545 its reverse (54504333), we get a palindrome (87844878).

The spelling of 33340545 in words is "thirty-three million, three hundred forty thousand, five hundred forty-five".