33121044 has 36 divisors (see below), whose sum is σ = 91334880. Its totient is φ = 10036560.

The previous prime is 33121027. The next prime is 33121063. The reversal of 33121044 is 44012133.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41424 + ... + 42215.

It is an arithmetic number, because the mean of its divisors is an integer number (2537080).

Almost surely, 2^33121044 is an apocalyptic number.

It is an amenable number.

33121044 is an abundant number, since it is smaller than the sum of its proper divisors (58213836).

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

33121044 is a wasteful number, since it uses less digits than its factorization.

33121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83660 (or 83655 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 33121044 is about 5755.0885310306. The cubic root of 33121044 is about 321.1451290063.

Adding to 33121044 its reverse (44012133), we get a palindrome (77133177).

It can be divided in two parts, 3312 and 1044, that added together give a square (4356 = 66²).

The spelling of 33121044 in words is "thirty-three million, one hundred twenty-one thousand, forty-four".