33665042 has 16 divisors (see below), whose sum is σ = 52199232. Its totient is φ = 16271280.

The previous prime is 33665041. The next prime is 33665053. The reversal of 33665042 is 24056633.

It is a super-2 number, since 2×33665042² = 2266670105723528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33664996 and 33665014.

It is not an unprimeable number, because it can be changed into a prime (33665041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10667 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (3262452).

Almost surely, 2^33665042 is an apocalyptic number.

33665042 is a deficient number, since it is larger than the sum of its proper divisors (18534190).

33665042 is a wasteful number, since it uses less digits than its factorization.

33665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 33665042 is about 5802.1583914954. The cubic root of 33665042 is about 322.8938105243.

The spelling of 33665042 in words is "thirty-three million, six hundred sixty-five thousand, forty-two".