33161044 has 36 divisors (see below), whose sum is σ = 68300820. Its totient is φ = 14044800.

The previous prime is 33161021. The next prime is 33161057. The reversal of 33161044 is 44016133.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 28751044 = 2100^2 + 5362^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16494 + ... + 18394.

It is an arithmetic number, because the mean of its divisors is an integer number (1897245).

Almost surely, 2^33161044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33161044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34150410).

33161044 is an abundant number, since it is smaller than the sum of its proper divisors (35139776).

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

33161044 is a wasteful number, since it uses less digits than its factorization.

33161044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 33161044 is about 5758.5626678886. The cubic root of 33161044 is about 321.2743584007.

Adding to 33161044 its reverse (44016133), we get a palindrome (77177177).

The spelling of 33161044 in words is "thirty-three million, one hundred sixty-one thousand, forty-four".