33940016 has 60 divisors (see below), whose sum is σ = 74016096. Its totient is φ = 15058560.

The previous prime is 33940013. The next prime is 33940021. The reversal of 33940016 is 61004933.

It is not an unprimeable number, because it can be changed into a prime (33940013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90806 + ... + 91178.

Almost surely, 2^33940016 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 33940016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37008048).

33940016 is an abundant number, since it is smaller than the sum of its proper divisors (40076080).

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

33940016 is a wasteful number, since it uses less digits than its factorization.

33940016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 33940016 is about 5825.8060386525. The cubic root of 33940016 is about 323.7705533977.

Adding to 33940016 its reverse (61004933), we get a palindrome (94944949).

It can be divided in two parts, 33 and 940016, that added together give a palindrome (940049).

The spelling of 33940016 in words is "thirty-three million, nine hundred forty thousand, sixteen".