33454216 has 16 divisors (see below), whose sum is σ = 64422540. Its totient is φ = 16274880.

The previous prime is 33454207. The next prime is 33454241. The reversal of 33454216 is 61245433.

It can be written as a sum of positive squares in 2 ways, for example, as 29268100 + 4186116 = 5410^2 + 2046^2 .

It is a super-2 number, since 2×33454216² = 2238369136349312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56215 + ... + 56806.

Almost surely, 2^33454216 is an apocalyptic number.

It is an amenable number.

33454216 is a deficient number, since it is larger than the sum of its proper divisors (30968324).

33454216 is a wasteful number, since it uses less digits than its factorization.

33454216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113064 (or 113060 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 33454216 is about 5783.9619639137. The cubic root of 33454216 is about 322.2183619743.

Adding to 33454216 its reverse (61245433), we get a palindrome (94699649).

It can be divided in two parts, 33454 and 216, that added together give a triangular number (33670 = T₂₅₉).

The spelling of 33454216 in words is "thirty-three million, four hundred fifty-four thousand, two hundred sixteen".