33013888 has 16 divisors (see below), whose sum is σ = 65770110. Its totient is φ = 16506880.

The previous prime is 33013829. The next prime is 33013891. The reversal of 33013888 is 88831033.

It can be written as a sum of positive squares in only one way, i.e., 22202944 + 10810944 = 4712^2 + 3288^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 128833 + ... + 129088.

Almost surely, 2^33013888 is an apocalyptic number.

It is an amenable number.

33013888 is a deficient number, since it is larger than the sum of its proper divisors (32756222).

33013888 is an equidigital number, since it uses as much as digits as its factorization.

33013888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257935 (or 257923 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 33013888 is about 5745.7713146278. The cubic root of 33013888 is about 320.7984228876.

The spelling of 33013888 in words is "thirty-three million, thirteen thousand, eight hundred eighty-eight".