33955540 has 24 divisors (see below), whose sum is σ = 73608192. Its totient is φ = 13143840.

The previous prime is 33955501. The next prime is 33955561. The reversal of 33955540 is 4555933.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 33955496 and 33955505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26764 + ... + 28003.

It is an arithmetic number, because the mean of its divisors is an integer number (3067008).

Almost surely, 2^33955540 is an apocalyptic number.

It is an amenable number.

33955540 is an abundant number, since it is smaller than the sum of its proper divisors (39652652).

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

33955540 is a wasteful number, since it uses less digits than its factorization.

33955540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54807 (or 54805 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 33955540 is about 5827.1382341592. The cubic root of 33955540 is about 323.8199095710.

The spelling of 33955540 in words is "thirty-three million, nine hundred fifty-five thousand, five hundred forty".