33450016 has 36 divisors (see below), whose sum is σ = 69975738. Its totient is φ = 15736832.

The previous prime is 33449993. The next prime is 33450031. The reversal of 33450016 is 61005433.

It can be written as a sum of positive squares in 3 ways, for example, as 26998416 + 6451600 = 5196^2 + 2540^2 .

It is a super-2 number, since 2×33450016² = 2237807140800512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7440 + ... + 11056.

Almost surely, 2^33450016 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 33450016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34987869).

33450016 is an abundant number, since it is smaller than the sum of its proper divisors (36525722).

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

33450016 is a wasteful number, since it uses less digits than its factorization.

33450016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3636 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 33450016 is about 5783.5988795905. The cubic root of 33450016 is about 322.2048771392.

Adding to 33450016 its reverse (61005433), we get a palindrome (94455449).

The spelling of 33450016 in words is "thirty-three million, four hundred fifty thousand, sixteen".