33240538 has 16 divisors (see below), whose sum is σ = 52607520. Its totient is φ = 15708816.

The previous prime is 33240533. The next prime is 33240539. The reversal of 33240538 is 83504233.

It is a super-2 number, since 2×33240538² = 2209866733058888, which contains 22 as substring.

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, 22581 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (3287970).

Almost surely, 2^33240538 is an apocalyptic number.

33240538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

33240538 is a deficient number, since it is larger than the sum of its proper divisors (19366982).

33240538 is a wasteful number, since it uses less digits than its factorization.

33240538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 33240538 is about 5765.4607795041. The cubic root of 33240538 is about 321.5308742814.

The spelling of 33240538 in words is "thirty-three million, two hundred forty thousand, five hundred thirty-eight".