33540666 has 8 divisors (see below), whose sum is σ = 67081344. Its totient is φ = 11180220.

The previous prime is 33540659. The next prime is 33540691. The reversal of 33540666 is 66604533.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

33540666 is an admirable number.

It is a super-2 number, since 2×33540666² = 2249952551447112, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2795050 + ... + 2795061.

It is an arithmetic number, because the mean of its divisors is an integer number (8385168).

Almost surely, 2^33540666 is an apocalyptic number.

33540666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33540666 is a wasteful number, since it uses less digits than its factorization.

33540666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590116.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 33540666 is about 5791.4303932621. The cubic root of 33540666 is about 322.4956744808.

The spelling of 33540666 in words is "thirty-three million, five hundred forty thousand, six hundred sixty-six".