33688412 has 12 divisors (see below), whose sum is σ = 59496360. Its totient is φ = 16689456.

The previous prime is 33688357. The next prime is 33688423. The reversal of 33688412 is 21488633.

It is a happy number.

It is a super-2 number, since 2×33688412² = 2269818206163488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38198 + ... + 39069.

It is an arithmetic number, because the mean of its divisors is an integer number (4958030).

Almost surely, 2^33688412 is an apocalyptic number.

It is an amenable number.

33688412 is a deficient number, since it is larger than the sum of its proper divisors (25807948).

33688412 is a wasteful number, since it uses less digits than its factorization.

33688412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77380 (or 77378 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 33688412 is about 5804.1719478320. The cubic root of 33688412 is about 322.9685099993.

The spelling of 33688412 in words is "thirty-three million, six hundred eighty-eight thousand, four hundred twelve".