33640675 has 6 divisors (see below), whose sum is σ = 41714468. Its totient is φ = 26912520.

The previous prime is 33640661. The next prime is 33640687. The reversal of 33640675 is 57604633.

It is not a de Polignac number, because 33640675 - 2¹⁵ = 33607907 is a prime.

It is a super-2 number, since 2×33640675² = 2263390028911250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33640675.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 672789 + ... + 672838.

Almost surely, 2^33640675 is an apocalyptic number.

33640675 is a deficient number, since it is larger than the sum of its proper divisors (8073793).

33640675 is a wasteful number, since it uses less digits than its factorization.

33640675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345637 (or 1345632 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 33640675 is about 5800.0581893633. The cubic root of 33640675 is about 322.8158874318.

The spelling of 33640675 in words is "thirty-three million, six hundred forty thousand, six hundred seventy-five".