33240534 has 16 divisors (see below), whose sum is σ = 66597888. Its totient is φ = 11060712.

The previous prime is 33240533. The next prime is 33240539. The reversal of 33240534 is 43504233.

It is a super-2 number, since 2×33240534² = 2209866201210312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922 + ... + 8205.

It is an arithmetic number, because the mean of its divisors is an integer number (4162368).

Almost surely, 2^33240534 is an apocalyptic number.

33240534 is an abundant number, since it is smaller than the sum of its proper divisors (33357354).

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

33240534 is a wasteful number, since it uses less digits than its factorization.

33240534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 33240534 is about 5765.4604326107. The cubic root of 33240534 is about 321.5308613843.

Adding to 33240534 its reverse (43504233), we get a palindrome (76744767).

The spelling of 33240534 in words is "thirty-three million, two hundred forty thousand, five hundred thirty-four".